New York explosion
ny bomb suspect ahmad rahami train perez tsr sot _00001005.jpg
Now playing
Sources: Bomb suspect possibly took train to NY
ny bomb suspect ahmad rahami train perez tsr sot _00001430.jpg
Now playing
FBI: Bombing witnesses have likely left US
Rahami dad
Now playing
Rahami's dad: I called cops on son years ago
harinder baines rahami police shootout sot newday _00003109.jpg
Now playing
Witness recounts bombing suspect's shootout with police
new video appears to show bombings suspect ahmad rahami vause nr _00001608.jpg
Now playing
New surveillance video appears to show suspect Rahami
Now playing
Ahmad Khan Rahami captured
Ahmad Khan Rahami, 28, has been charged with five counts of attempted murder of a law enforcement officer after an exchange of gunfire with police today, acting Union County Prosecutor Grace H. Park announced Monday.  
Rahami also is charged with second-degree unlawful possession of a weapon and second-degree possession of a weapon for an unlawful purpose. 
At approximately 10:30 a.m. on Monday morning, a uniformed Linden police officer approached a man later identified as Rahami outside a bar on East Elizabeth Avenue, according to the investigation. At that time, Rahami immediately produced a handgun and shot the officer in the torso, striking him in his protective vest. 
Additional patrol officers responding to the scene engaged Rahami in an exchange of gunfire that ended when Rahami was shot multiple times outside of an auto repair shop on East Elizabeth Avenue, several blocks west of where he was initially approached. 
A handgun was recovered from Rahami at the scene. Rahami was immediately transported to a local hospital for treatment and has since undergone surgery. Neither the police officer who was struck by gunfire nor a second officer who was struck in the head by a fragment of a bullet suffered life-threatening injuries. 
Bail for Rahami was set at $5.2 million by state Superior Court Judge Regina Caulfield. 
This defendant was wanted for questioning in a federal investigation being led by the FBI regarding explosive devices found and detonated over the weekend in New Jersey and New York City. That investigation is continuing, and any media inquiries regarding it should be referred to the FBIís Newark office at 973-792-3020.
Convictions on first-degree criminal charges are commonly individually punishable by 10 to 20 years in state prison, while second-degree charges typically result in terms of 5 to 10 years. 
These criminal charges are mere accusations. All defendants are presumed innocent until proven guilty in a court of law.
Now playing
Did Rahami's wife leave US before bombings?
Harinder Bains spotted New York/New Jersey bombing suspect
Now playing
Did Rahamis' wife leave US before bombings?
new york explosion investigation bombing ahmad khan rahami griffin dnt lead_00001110.jpg
Now playing
How the New York, New Jersey explosions unfolded
Ahmad Khan Rahami captured orig mg_00000000.jpg
Now playing
What we know about bombing suspect Ahmad Rahami
Now playing
What we know about NY, NJ bombing suspect Ahmad Rahami
Abel Andrew
Now playing
Trump: Open immigration makes recent terror possible
bombing suspect rahami in custody ambulance vo ath_00001824.jpg
Now playing
New video of bombing suspect in custody
Elizabeth New Jersey mayor sot_00002609.jpg
Now playing
Mayor: Family had run-ins with law in past
Abel Andrew
Now playing
Bombing suspect wheeled into ambulance
Obama NJ NY blast
Now playing
Obama: If you see something suspicious, say something
NEW YORK, NY - SEPTEMBER 18: FBI agents review the crime scene of remnants of bomb debris on 23rd St. in Manhattan's Chelsea neighborhood on September 18, 2016 in New York City. An explosion that injured 29 people that went off in a construction dumpster is being labeled an "intentional act". A second device, a pressure cooker, was found four blocks away that an early investigation found was likely also a bomb. (Photo by Stephanie Keith/Getty Images)
Now playing
Investigators: Possible terror cell behind bombings
Firefighters arrive at the scene of an apparent explosion in Manhattan's Chelsea neighborhood, in New York, Saturday, Sept. 17, 2016. A law enforcement official tells The Associated Press that an explosion in the Chelsea neighborhood appears to have come from a construction toolbox in front of a building. The official spoke on condition of anonymity because the person wasn't authorized to speak about an ongoing investigation. Police say 26 people have sustained minor injuries in the explosion on West 23rd Street. (AP Photo/Andres Kudacki)
Now playing
Explosion rocks New York's Chelsea neighborhood
TOPSHOT - A fire truck is seen near a blocked off road near the site of an alleged bomb explosion on West 23rd Street on September 17, 2016, in New York.
An explosion in New York's upscale and bustling Chelsea neighborhood injured at least 25 people, none of them in a life-threatening condition, late Saturday, the fire department said. / AFP / Bryan R. Smith        (Photo credit should read BRYAN R. SMITH/AFP/Getty Images)
Now playing
Cuomo: It's terrorism, but not international terrorism
Explosion in Manhattan on 23rd street and 6th avenue.
Now playing
Video shows explosion outside fitness center
surveillance video msnbc Orangetheory Fitness Chelsea vo nr_00001207.jpg
Now playing
Sources: Device found at second location
NEW YORK, NY - SEPTEMBER 17:  Police, firefighters and emergency workers gather at the scene of an explosion in Manhattan on September 17, 2016 in New York City. The evening explosion at 23rd street in the popular Chelsea neighborhood injured over a dozen people and is being investigated. (Photo by Spencer Platt/Getty Images)
Now playing
NYC mayor: No evidence of a terror connection
Donald Trump bomb New York_00000000.jpg
Now playing
Trump: 'A bomb went off in New York'
Now playing
Hillary Clinton addresses NYC explosion
new york explosion witness comments sot_00004505.jpg
Now playing
Witness: Everything shut down, seems like chaos

Story highlights

The blast wounded 29 people on Saturday night

New police commissioner James O'Neill was sworn in Friday

CNN —  

For New York’s newest police commissioner James O’Neill, the Chelsea explosion was his initiation into the new job.

The blast, which wounded 29 people on Saturday night, and the discovery of a pressure cooker device set the city on edge on what should’ve been a vibrant night on Manhattan’s west side.

New York explosion leaves dozens injured

At the late night news conference where authorities announced their initial findings, O’Neill took the mic to reassure residents the NYPD was on full alert and an investigation underway.

But his was an unfamiliar face to most. Saturday marked his first full day on the job as the city’s 43rd commissioner, succeeding William Bratton. O’Neill was sworn in Friday – Bratton’s last day on the job.

So just who is the man who oversees the largest police department in the United States?

New York Police Commissioner James O'Neill (center) and Mayor Bill de Blasio walk into a press conference as police, firefighters and emergency workers gather at the scene of an explosion in Manhattan on September 17, 2016 in New York City.

O’Neill has over three decades of experience with the force, first beginning his career in 1983 with the transit police.

He’s a long-time police veteran

“He credits his time on patrol on the trains and platforms of the subway system with helping him learn how to interact and communicate with a wide range of people, a skill he regards as essential to successful police work,” the NYPD website says.

He gradually rose through the ranks, including as commanding officer of the 25th, 44th and Central Park precincts, followed by chief of patrol. In 2014, he was named chief of department, the NYPD’s highest uniformed rank, before replacing Bratton.

He’s from New York

Flatbush, Brooklyn to be exact. He grew up as one of seven children, later attending John Jay College.

He’s known to go by “Jim” or “Jimmy.”

He has two sons, Daniel and Christopher, and is described by the NYPD as an “avid hockey player and motorcyclist.”

Mayor Bill de Blasio, center, and New York Police Commissioner James O'Neill, center right, speak during a press conference near the scene of an explosion on West 23rd street in Manhattan's Chelsea neighborhood, in New York, Saturday, Sept. 17, 2016.

Crime down but challenges ahead

He’s inherited a record low crime rate, thanks to Bratton’s tenure, but will have to grapple with other significant challenges, especially surrounding issues of race and terrorism.

O’Neill has a demonstrated track record when it comes to racial relations. He pioneered the idea of neighborhood policing, or building relationships between police officers and the community to increase trust – and not long after stepping up to Chief of Department, he handled the protests around Eric Garner’s death and the subsequent assassinations of two detectives.

He’s said he will focus on reconnecting the police force and residents.

“Fighting crime is what we get paid to do,” O’Neill said, according to the NYPD website. “But we can’t do that unless we achieve full partnership with the community. Unless we have that connectivity, it’s not going to work.”