By Adrienne Moore

SACRAMENTO (CBS13) — It’s been a sleepless night for Kennedy Hailemariam. He says he can’t shake the image of Spencer Stone covered in blood out of his head.

When he offered to take the man who once helped thwart a suspected terrorist attack on a France-bound train to the hospital, he says he was blown away by how calm and collected he was after such a violent attack.

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BREAKDOWN: A Closer Look At The Fight That Led To Spencer Stone Stabbing In Sacramento

“I tried to ask him ‘Yo, yo!’ And the only thing he say, he say is ‘Call 911.’ That’s what he said,” he said.

Hailemariam watched Stone take on three men in the middle of one of Midtown’s busiest intersections.

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“He knocked out one guy, and they tried to stop him, but he was down already,” he said. “The blood is coming like from everywhere.”

Surveillance video shows the men surrounding the 23-year-old Carmichael man who police say was out with four friends—a man and three women—when an argument turned physical and spilled onto 21st and K streets.

Hailemariam’s cab can be seen pulling into the shot where it was clear the airman was outnumbered.

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REPORTER: When you see them fighting, you see blood, did you think someone was going to die?

HAILEMARIAM: You can tell that they’ve got a knife, you know what I mean. You can see that. Because, like, you know, once they, you know they do like this (moves his arm like stabbing) and blood comes out.

He describes the suspects as three short and stocky Asian men in their 30s, one of whom even attacked one of the women with Stone.

“She tried to protect him too but she got hit too. Like you know, big punch, like boom,” he said, gesturing to his mouth.

As first responders moved in, Hailemariam says Stone appeared to be losing consciousness as he laid down on the sidewalk.

Hailemariam is now looking into installing a dashcam in his taxi. He’s anxious knowing a Hometown Hero survived an attack overseas only to come home to another one.

“This is his home city and he got this thing,” he said. “He comes out to like, to enjoy or something, but this happened to him in his hometown, you know what I mean?”

Police believe alcohol was a factor in the case, but Kennedy was quick to point out that Stone and his friends did not act or sound as though they had too much to drink.

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Hailemariam says he’s planning on spending the next few days at home with his 8-month-old daughter.

Adrienne Moore