Fan Casting Caravan of Darkness

In 1963 universe #78990 a young man named Johnathan Harper has to stop the man who killed his father Nathan Harper who was a former detective. The man who killed Nathan was named Laurence Folflower and now is running a secret underground drug ring called the Caravan of Darkness and Johnathan is the only one who thinks Laurence is behind all this. The movie ends with Laurence killing Johnathan's wife and daughter right before killing himself which eventually drives Johnathan crazy and being locked up after the cops find him with all the bodies assuming he had killed them.