Darrell Sheets’s cause of death has been revealed two weeks after authorities found the Storage Wars star dead at his home in Lake Havasu City, Arizona. Nicknamed “The Gambler,” Sheets — who died aged 67 — appeared in dozens of episodes over 15 seasons of the A+E Networks reality show and was known for his catchphrase: “This is the wow factor!” On Tuesday, the Mohave County Medical Examiner’s Office confirmed to multiple outlets that Sheets died by suicide. The Lake Havasu City Police Department subsequently released a statement adding that it was notified of Sheets’ death being “ruled a suicide, pending the completion of toxicology results.” The agency “continues to actively investigate allegations of cyberbullying associated with this case,” the statement added, according to USA Today . “The Criminal Investigations Unit has submitted Darrell Sheets’ cellular phone for forensic analysis and is currently awaiting the results,” according to the statement.…