John Evans, a resident of Cambrian Park, California, was found dead under suspicious circumstances on September 15, 1984. Early investigative findings suggested foul play and the case was handled as a homicide by local law enforcement.

Investigators conducted interviews and collected forensic evidence at the scene. Several suspects were identified and some were arrested; charges including murder were brought against multiple people. Trials followed with witness testimony and forensic evidence presented. The proceedings ended with some convictions and some acquittals.

Reports say Evans had been involved in contentious business dealings and personal disputes that investigators considered when exploring possible motives.