Storage Wars star Darrell Sheets' cause of death has been revealed amid allegations that he was cyberbullied in the final days of his life. The Mohave County Medical Examiner's Office in Arizona ruled Sheets' death a suicide, Us Weekly confirms. The full autopsy report has yet to be released. Us confirmed with the Lake Havasu City Police Department on April 22 that officers opened a criminal investigation into Sheets' death. Officers discovered the reality star's body at an Arizona residence earlier that day after receiving a distress call.