MSNBC Dateline October 21, 2019 05:04:00
You know, a lot of times. >> reporter: sam was a war veteran. he'd fought in afghanistan and made it home to california after three years overseas. sam lived across the street from the college at an apartment complex. >> it's not a dorm, but i would call it a college dorm. >> reporter: sam's good friend, ruben, often hung out there with sam. >> and the poolside always had people, you know, drinking and having fun. having fun at the pool. >> reporter: but despite his surroundings, sam was focused. >> he seemed more responsible. he seemed like he had, like, more of a plan on where he was going. ...