Years after leaving Iraq, Army veteran is tormented by belief that he accidentally killed his friend

Arvin Reyes, 31, walks to a marijuana dispensary in San Francisco. (Rick Loomis / Los Angeles Times)

Feb. 26, 2015 3 AM PT

Arvin Reyes believed he had killed his friend Spc. Shin Woo Kim but his commanding officer that day knew the truth: Reyes hadn’t killed Kim.

Shin Woo Kim is buried at Rose Hills Memorial Park. (Rick Loomis / Los Angeles Times)

Arvin Reyes, 31, got a “Peace of Mind” tattoo in 2013. (Rick Loomis / Los Angeles Times)

Arvin Reyes tracked his platoon sergeant Sloan Sulham down to make a confession. (Rick Loomis / Los Angeles Times)