A 20-year-old Arizona man who was injured during a shooting rampage on Thursday detailed the attack online, going so far as to post pictures of himself right after being shot, the Arizona Republic reported.

Culinary student Isaac Martínez said in a Facebook post that the suspect, identified by police as 41-year-old Ryan Giroux, approached him at his workplace and demanded that Martínez give him his car keys.

"Of course I said no, and next was him pulling out a gun and cocking it. Soon as I saw it I started stepping back. And yelled for everyone to step back and get down," the victim wrote. "Next thing I knew I was hitting the ground, got up as fast as I fell, and ran out the back exit."

Martínez was subsequently treated at a local hospital. He also posted pictures of himself after the shooting. The Republic posted the images, which can be seen below.

Martinez wrote that he is expected to make a full recovery from his injuries.

"I had a bullet hit me from behind and go through my shoulder and out my coller area," he said. "Any higher or lower it coulda hit a artery, or shatter my shoulder blade. It was a miracle hit."

According to Martínez, Giroux left the scene in his instructor's car. Reuters reported that the suspect attacked Martínez after shooting and killing 29-year-old David James Williams inside a nearby motel, where he also wounded Williams' 51-year-old mother and 19-year-old girlfriend. Giroux also shot and wounded two other men at different apartment complexes before being captured.

The Southern Poverty Law Center has identified Giroux as a member of the white supremacist group "Hammerskin Nation." Page shot and killed six people and wounded four others at a Sikh temple in Wisconsin in an August 2012 attack before killing himself.

Giroux was charged on Thursday with multiple felonies, including armed robbery, kidnapping, first- and second-degree murder, and aggravated assault with a deadly weapon. He is being held without bond, and is due back in court on March 26.

Watch KPNX-TV's report on Martínez's account, as aired on Thursday, below.