On a summer evening in Tucson, Arizona, the life of Robert C. Detwiler, a 36-year-old Caucasian male, was tragically cut short. On August 15, 2020, officers from the Tucson Police Department were called to an apartment complex at 8665 East Speedway Boulevard, where they discovered Detwiler with gunshot injuries in a courtyard. Emergency services from the Tucson Fire Department rushed him to Banner University Medical Center, but he ultimately succumbed to his injuries and was pronounced dead.
The initial investigation by homicide detectives revealed that Detwiler had been involved in a confrontation with an individual just before the shooting occurred. Witnesses at the scene reported seeing the altercation, after which the suspect fled the area on foot. The Tucson Police Department initiated a homicide investigation into the death of Robert C. Detwiler.
In the immediate aftermath of the incident, authorities announced that no suspects had been identified, and the investigation was ongoing. Public appeals were made for anyone with information to come forward and contact the police or the 88-CRIME anonymous tip line. As of late 2025, there have been no subsequent public announcements regarding any arrests, the identification of a suspect or suspects, or any significant breakthroughs in the case. The death of Robert C. Detwiler remains an open and unresolved homicide investigation.