Patrick Heard was found by El Cajon police officers just after 11:20 下午. 八月. 22 in front of an apartment complex, San Diego County Crime Stoppers said Friday.
He was not responsive and had a knife-inflicted wound to the throat, 警察说.
The officers rendered aid and he was taken to a hospital where he later died.
A motive for the attack has not been determined and no suspects have been identified.
The suspect was described as a six-foot tall male with a medium build. He was wearing a black hoodie, dark jeans and a baseball cap.
Crime Stoppers is offering a $ 1,000 reward. Anyone with information is asked to contact the El Cajon Police Department at 619-580-8477.