Mario Ramos was 42 when he was fatally shot in the restroom of a QuikTrip convenience store in Phoenix on May 11, 2017. The shooting happened in a public, transient setting and ended Ramos’s life abruptly.

Police identified a suspect at the scene soon after the shooting. That person asserted the shooting was an act of self-defense, and investigators treated the circumstances leading up to the shots as part of an active inquiry. Few other details about what precipitated the confrontation have been released.

Anyone who was at the QuikTrip that day or who knows more about Mario Ramos’s final hours is asked to come forward with information.