18.
His experience in law enforcement began during the war in Vietnam.
As mentioned earlier, Johnson already had experience in law enforcement before a prolific career as a fake contract killer. He served as a military policeman overseeing convoys in Vietnam. When he returned home, he worked as a Sheriff’s deputy in Louisiana, then relocated to Port Arthur, Texas, where he started his work as an undercover officer trying to bust drug dealers. “I don’t think the drug dealers ever suspected I might be a cop because my personality was so weird to begin with,” he said, displaying an innate skill in his undercover work.