LOS ANGELES - Lit by the fluorescent lights of the Arco gas station, Nick Reiner walked out of the am/pm market thirsty. A blue Gatorade in hand.

Security footage captured the moment near the University of Southern California on Sunday, Dec. 14.

Dressed in jeans and a green track jacket, a baseball hat covering his dark hair, a red backpack slung over his shoulders, he waited at the bus stop near Exposition Park, a place often filled with homeless people.

Alexis Hernandez, a security guard at the market, crossed paths with the 32-year-old. It was the beginning of a typical night shift as Nick exited.

“He acted normal,” Hernandez says.