train terror hero spencer stone stabbing nr_00002328.jpg
A & P Liquors
train terror hero spencer stone stabbing nr_00002328.jpg
Now playing
01:58
New video shows France train hero getting stabbed
From the left, British businessman Chris Norman,  Anthony Sadler, a senior at Sacramento University in California, French President Francois Hollande, U.S. Airman Spencer Stone, and Alek Skarlatos a U.S. National Guardsman from Roseburg, Oregon pose at the Elysee Palace, Monday Aug.24, 2015 in Paris, France. Hollande  pinned the Legion of Honor medal on U.S. Airman Spencer Stone, National Guardsman Alek Skarlatos, and their years-long friend Anthony Sadler, who subdued the gunman as he moved through the train with an assault rifle strapped to his bare chest. The British businessman, Chris Norman, also jumped into the fray. (AP Photo/Michel Euler, Pool)
Michel Euler/AP
From the left, British businessman Chris Norman, Anthony Sadler, a senior at Sacramento University in California, French President Francois Hollande, U.S. Airman Spencer Stone, and Alek Skarlatos a U.S. National Guardsman from Roseburg, Oregon pose at the Elysee Palace, Monday Aug.24, 2015 in Paris, France. Hollande pinned the Legion of Honor medal on U.S. Airman Spencer Stone, National Guardsman Alek Skarlatos, and their years-long friend Anthony Sadler, who subdued the gunman as he moved through the train with an assault rifle strapped to his bare chest. The British businessman, Chris Norman, also jumped into the fray. (AP Photo/Michel Euler, Pool)
Now playing
02:32
France train heroes honored
Off-duty US Air Force Spencer Stone (L), one of the men to overpower the gunman who opened fire with an assault rifle on a high-speed train, gestures as he leaves the hospital of Lesquin, northern France on August 22. On August 21, a gunman opened fire on the train traveling from Amsterdam to Paris, injuring two people before being tackled by several passengers including off-duty American servicemen. Spencer Stone was first to the gunman who slashed him in the neck and almost sliced off his thumb with a box-cutter.
Phiippr Huguen/AFP/Getty Images
Off-duty US Air Force Spencer Stone (L), one of the men to overpower the gunman who opened fire with an assault rifle on a high-speed train, gestures as he leaves the hospital of Lesquin, northern France on August 22. On August 21, a gunman opened fire on the train traveling from Amsterdam to Paris, injuring two people before being tackled by several passengers including off-duty American servicemen. Spencer Stone was first to the gunman who slashed him in the neck and almost sliced off his thumb with a box-cutter.
Now playing
01:03
Spencer Stone leaves French hospital following treatment
france train attack witness savidge sot_00001213.jpg
france train attack witness savidge sot_00001213.jpg
Now playing
05:25
Wife of wounded train hero recounts attack
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
AFP/Getty Images
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
Now playing
02:40
Prosecutor: Train gunman had terrorist intent
france train attack witness savidge sot_00001213.jpg
france train attack witness savidge sot_00001213.jpg
Now playing
02:03
French train hero's wife recalls shooting
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
AFP/Getty Images
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
Now playing
05:18
Prosecutor: Gunman wanted to 'kill a train full of people'
NS Slug: FRANCE: TRAIN HEROES HONORED-CHRIS NORMAN (DEPARTURE, REMARKS)    Synopsis: French President  Francois Hollande gives France's highest award to train heroes who fought attacker    Video Shows: Chris Norman leaves Elysee Palace after receiving Legion of Honor      Keywords: FRANCE TRAIN TERROR ANTHONY SADLER SPENCER STONE ALEK SKARLATOS CHRIS NORMAN AYOUB EL KHAZZANI
POOL
NS Slug: FRANCE: TRAIN HEROES HONORED-CHRIS NORMAN (DEPARTURE, REMARKS) Synopsis: French President Francois Hollande gives France's highest award to train heroes who fought attacker Video Shows: Chris Norman leaves Elysee Palace after receiving Legion of Honor Keywords: FRANCE TRAIN TERROR ANTHONY SADLER SPENCER STONE ALEK SKARLATOS CHRIS NORMAN AYOUB EL KHAZZANI
Now playing
01:33
British train hero 'not going to die sitting down'
new day savidge france supect american heroes latest _00002626.jpg
new day savidge france supect american heroes latest _00002626.jpg
Now playing
02:06
France attack suspect unknown to U.S. authorities
Off-duty US servicemen Anthony Sadler (L), Spencer Stone (2nd L), Alek Skarlatos (R) and US ambassador to France Jane Hartley (2nd R) pose after a press conference at the US embassy in Paris on August 23,  two days after 25-year-old Moroccan Ayoub El-Khazzani opened fire on a Thalys train travelling from Amsterdam to Paris, injuring two people before being tackled by several passengers including off-duty American servicemen.
Thomas Samson/AFP/Getty Images
Off-duty US servicemen Anthony Sadler (L), Spencer Stone (2nd L), Alek Skarlatos (R) and US ambassador to France Jane Hartley (2nd R) pose after a press conference at the US embassy in Paris on August 23, two days after 25-year-old Moroccan Ayoub El-Khazzani opened fire on a Thalys train travelling from Amsterdam to Paris, injuring two people before being tackled by several passengers including off-duty American servicemen.
Now playing
04:46
How five heroes stopped a train attack (2015)
french american hero train terror savidge dnt erin _00001707.jpg
Facebook / Secret Season
french american hero train terror savidge dnt erin _00001707.jpg
Now playing
02:48
French-American hero shot trying to take gun from suspect
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
AFP/Getty Images
An undated photo released by a social network shows the 25-year-old Moroccan suspect in Friday's shooting, named as Ayoub El-Khazzani, who was overpowered by two US servicemen and other passengers before he could kill anyone during an attack aboard an Amsterdam-Paris Thalys train on August 21, 2015. He lived in (southern) Spain in Algeciras for a year, until 2014, then he decided to move to France. Once in France he went to Syria, then returned to France, according to a Spanish anti-terror source.
Now playing
02:06
What do we know about the France train gunman?
From the left, British businessman Chris Norman,  Anthony Sadler, a senior at Sacramento University in California, French President Francois Hollande, U.S. Airman Spencer Stone, and Alek Skarlatos a U.S. National Guardsman from Roseburg, Oregon pose at the Elysee Palace, Monday Aug.24, 2015 in Paris, France. Hollande  pinned the Legion of Honor medal on U.S. Airman Spencer Stone, National Guardsman Alek Skarlatos, and their years-long friend Anthony Sadler, who subdued the gunman as he moved through the train with an assault rifle strapped to his bare chest. The British businessman, Chris Norman, also jumped into the fray. (AP Photo/Michel Euler, Pool)
Michel Euler/AP
From the left, British businessman Chris Norman, Anthony Sadler, a senior at Sacramento University in California, French President Francois Hollande, U.S. Airman Spencer Stone, and Alek Skarlatos a U.S. National Guardsman from Roseburg, Oregon pose at the Elysee Palace, Monday Aug.24, 2015 in Paris, France. Hollande pinned the Legion of Honor medal on U.S. Airman Spencer Stone, National Guardsman Alek Skarlatos, and their years-long friend Anthony Sadler, who subdued the gunman as he moved through the train with an assault rifle strapped to his bare chest. The British businessman, Chris Norman, also jumped into the fray. (AP Photo/Michel Euler, Pool)
Now playing
02:08
Train heroes honored for thwarting attack
terror attack vulnerabilities brown dnt tsr_00013715.jpg
terror attack vulnerabilities brown dnt tsr_00013715.jpg
Now playing
01:41
How vulnerable are citizens to terror attacks?
us ambassador france jane hartley hails americans train attack sot_00000000.jpg
Reuters
us ambassador france jane hartley hails americans train attack sot_00000000.jpg
Now playing
01:55
Ambassador hails American men as heroes
american heroes europe train press conference_00000107.jpg
american heroes europe train press conference_00000107.jpg
Now playing
01:12
Train heroes describe ordeal
From eft, Alek Skarlatos, U.S. Airman First Class Spencer Stone and Anthony Sadler aboard the Paris-bound train in France just hours before they foilied an attack by a shirtless man wielding a Kalashnikov aboard a high-speed Thalys train from Amsterdam to Paris on Friday, August 21.
Anthony Sadler
From eft, Alek Skarlatos, U.S. Airman First Class Spencer Stone and Anthony Sadler aboard the Paris-bound train in France just hours before they foilied an attack by a shirtless man wielding a Kalashnikov aboard a high-speed Thalys train from Amsterdam to Paris on Friday, August 21.
Now playing
01:47
Police learning more about attempted terror attack
Courtesy Anthony Sadler/CNN
Now playing
02:58
Train gunman identified as Ayoub el Khazzani
In this photo provided by Christina Cathleen Coons, a person lies on the floor after an incident on a high-speed train traveling from Amsterdam to Paris on Friday, Aug. 21, 2015. A gunman opened fire on the train wounding several people before American passengers subdued him, according to officials and one of the Americans involved. (Christina Cathleen Coon via AP)
AP
In this photo provided by Christina Cathleen Coons, a person lies on the floor after an incident on a high-speed train traveling from Amsterdam to Paris on Friday, Aug. 21, 2015. A gunman opened fire on the train wounding several people before American passengers subdued him, according to officials and one of the Americans involved. (Christina Cathleen Coon via AP)
Now playing
01:04
Exclusive cell phone video from inside train
France train attack Chris Norman_00000000.jpg
Reuters
France train attack Chris Norman_00000000.jpg
Now playing
01:09
'I'm probably going to die anyway ... so let's go'
Getty Images
Now playing
01:24
Father of American train hero: I'm proud and grateful
From left:  Anthony Sadler, from Pittsburg, California, Alek Skarlatos from Roseburg, Oregon, and British national Chris Norman -- who is living in France -- hold medals they received for stopping a gunman on a European train.
AFP/Getty Images
From left: Anthony Sadler, from Pittsburg, California, Alek Skarlatos from Roseburg, Oregon, and British national Chris Norman -- who is living in France -- hold medals they received for stopping a gunman on a European train.
Now playing
02:07
American heroes hogtie gunman, thwart attack
Anthony Sadler
Now playing
01:01
Americans who prevented massacre speak out
france train americans attack father intv _00013212.jpg
Facebook/Luis Montoya
france train americans attack father intv _00013212.jpg
Now playing
01:51
Father describes how men took down gunman
marines overpower gunman aboard train cruickshank intv erin_00001010.jpg
AFP/Getty Images
marines overpower gunman aboard train cruickshank intv erin_00001010.jpg
Now playing
01:36
Source: Two Marines overpower gunman aboard train
gunman opens fire on french train bitterman cnni_00012724.jpg
Getty Images
gunman opens fire on french train bitterman cnni_00012724.jpg
Now playing
02:13
Gunman opens fire on train in France

Story highlights

Surveillance video shows the violent confrontation spilling from a corner onto the street

Spencer Stone was stabbed more than once while out with friends in northern California, officials say

Stone and four others credited with thwarting gun attack on an Amsterdam-to-Paris train in August

CNN —  

Just weeks ago, U.S. Airman 1st Class Spencer Stone was tending to stab wounds after famously helping thwart a gun attack on a European train, feted internationally as a hero.

On Thursday he was in serious condition at a California hospital, having been stabbed again – this time during a night out with friends in an altercation for which he faces no criminal accusations, officials say.

Surveillance video shows 30 seconds of high drama and raw violence in midtown Sacramento before 1 a.m. Thursday.

What starts with a few punches thrown on a dark street corner quickly spills into the street. Five or six people are in the middle of it all pushing, shoving and trading blows.

One man falls to the ground at one point, only to quickly bounce back. Eventually, the two sparring sides go their separate ways.

Stone was one of those who walked away. But he did so with multiple stab wounds, Sacramento Deputy Police Chief Ken Bernard told reporters.

Bernard singled out two males who allegedly had a part in wounding Stone, who had been visiting bars in the area with four friends.

Police: Stone’s injuries not life-threatening

Stone was taken to UC Davis Medical Center with what Bernard called significant, but apparently non-life-theatening, stab wounds.

Airman 1st Class Spencer Stone, right, receives the Airman's Medal from Defense Secretary Ashton Carter in Washington on September 17 for his role in disarming a gunman on a Paris-bound train in August.
SAUL LOEB/AFP/Getty Images
Airman 1st Class Spencer Stone, right, receives the Airman's Medal from Defense Secretary Ashton Carter in Washington on September 17 for his role in disarming a gunman on a Paris-bound train in August.

Stone, who is stationed at nearby Travis Air Force Base, on Friday was in fair condition – upgraded from serious a day earlier. He was “able to get out of bed and in good spirits,” and is expected to make a full recovery, the hospital said.

“The family of Airman Spencer Stone appreciates the outpouring of love and support,” UC Davis Health Systems said.

Bernard declined to detail what led to the stabbing. He said police don’t believe it had anything to do with Stone’s celebrity, and a conversation between Stone’s group – a male friend and three female friends – and another group somewhere in midtown led to the assault “down the block.”

Sacramento police said detectives re-interviewed a 24-year old woman Thursday afternoon who was at the fight and suffered minor injuries. She was treated at a hospital and released.

“At this point we have no reason to believe Mr. Stone is in any kind of (legal) trouble,” Bernard said.

The assailants fled. Police said they’re looking for two Asian males who were wearing blue jeans and white T-shirts, and left in what’s believed to be a dark gray or black 2009-2012 Toyota Camry.

Bernard said he didn’t know whether Stone had been drinking, though others in his party had been.

He added that the case is still under investigation.

Train hero

Stone was one of five men who officials say stopped a gunman from attacking passengers of an Amsterdam-to-Paris train in August.

Stone rushed the gunman and was slashed several times with a box cutter in the process, almost severing this thumb, officials said.

He also tended to one of his fellow heroes, French-American Mark Moogalian. The latter was shot while confronting the gunman, and Stone, after the gunman was subdued, was credited with helping stop Moogalian’s bleeding.

All five were celebrated. Stone, Moogalian and the other three – Briton Chris Norman and Stone’s two American friends, Anthony Sadler and Army National Guard Spc. Alek Skarlatos – received France’s highest recognition, the Legion of Honor.

Skarlatos parlayed his fame to a spot on this season’s “Dancing with the Stars” on ABC.

He took to Twitter Thursday to ask for prayers for his friend.

“Everybody send prayers out to the Stone family today,” his tweet reads.

The suspect in the train assault, Ayoub El Khazzani, 25, of Morocco, was charged in France with attempted murder, attempted mass murder and membership in a terrorist organization. He is accused of intending to kill the train’s passengers.

Meet the men who helped avert a massacre in Europe

CNN’s Greg Botelho, Amanda Watts and Barbara Starr contributed to this report.