Griselda Gallardo, 20, was shot and killed while working at a Papa John’s in Tulsa, Oklahoma, on Sunday afternoon, October 5, 2014. Authorities identified 24-year-old Joshua Silkey as the suspect and said he had developed a romantic interest in Gallardo that she did not return. Witnesses and police report Silkey entered the restaurant and shot Gallardo while she was on duty.

A multi-agency manhunt followed, involving the Tulsa Police Department, the Oklahoma Highway Patrol and U.S. Marshals. The search continued into October 6, when a resident reported hearing a single gunshot in a wooded area; officers found Silkey there and investigators determined he died from a self-inflicted gunshot wound.

Are there details from that October weekend — friends, coworkers, or nearby businesses — that could shed more light on what happened inside the restaurant?