(SEATTLE) -- The Seattle campus hero who overpowered a gunman as he tried to reload his shotgun was identified Friday as Jon Meis, a teaching assistant at the school who was doubling as a security desk monitor.
Meis, 22, used pepper spray to subdue accused gunman Aaron R. Ybarra after Ybarra allegedly shot several students at Seattle Pacific University Thursday and was reloading his weapon, officials told ABC News affiliate KOMO.
Several other people jumped on top of the gunman and pinned him down until officers arrived, police said.
"There are a number of heroes in this," Assistant Police Chief Paul McDonagh said at a press conference. "The people around him (the gunman) stepped up."
One person died and three others -- including Meis -- were taken to Harborview Medical Center.
A hospital spokeswoman said on Friday that Meis was released and was unharmed but said, "Obviously he's undergoing mental anguish."
"There were no visible injuries. It was, I think, coming to grips with what happened, the trauma of seeing what happened to his fellow students," the spokeswoman said.
A male, 19, died from the shooting attack. A female student, 19, was listed in critical but stable condition with shotgun pellets in her chest and abdomen. A male student, 24, had pellets in his neck and chin, but could be released this weekend, she said.
Ybarra, 26, is being held in King County Jail and is scheduled to make an initial court appearance on Friday.
At an earlier news conference, McDonagh said the man in custody was not a student at the school.
None of the other victims were immediately identified.
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