She did this while taking three bullets.
"You can never underestimate the power of a mother to protect her children. To have three gunshot wounds and be able to get off that bridge and save two of her children is incredible to think about," Dr. Ray Georgen at Theda Clark Medical Center in Neenah said Monday.
But Stoffel's quick actions weren't enough to save her daughter Olivia and her husband, Johnathon, 33. Adam Bentdahl, 31, an unrelated Appleton man, also died.
Police say Sergio Valencia Del Toro, 27, opened fire near the middle of the Trestle Trail Bridge on Sunday evening after an argument with his ex-fiancée, CNN affiliate WLUK reported
. He then turned the gun on himself, taking his own life, police said.
The gunman didn't know any of his victims, authorities said.
Chaos on the bridge
Even with the loss of life, Erin and Ezra Stoffel are being called heroes. The toll could have been higher.
Stoffel sent Ezra to get help amid the gunfire.
"Despite being shot multiple times, Ms. Stoffel was able to ... (instruct) her young son to go run for assistance," said Menasha police Chief Tim Styka. "Absolutely amazing."
Barry Busby, the Winnebago County coroner, also praised her quick thinking.
"True heroes going into an act of fire, where they don't know what's out there on this unprotected bridge, but trying to save other people," Busby said. "And I think their fast response helped save a lot of people."
Georgen said the early stages of Stoffel's recovery are going well. The medical center lists her condition as critical.
A gofundme page
set up to help the family after the shooting had raised more than $115,000 by Tuesday evening.
A gofundme page
has also been set up for Bentdahl's family.