Donald Peterson and #link#6144DMNJ Dennis Diamond were last seen in the afternoon of April 19, 1986, in Dennis' black two-door 1984 Buick Regal. The men were headed for Philadelphia and before leaving Dennis told his wife to start dinner, that they would be back in 1 1/2 hours. Neither man returned home, and they were reported missing on April 25. When police went to their homes to investigate, they found an abandoned meth lab in a former chicken coop on Donald's property and a warrant was issued for his arrest. On April 11, 1988, Dennis' car was found in the parking lot of the Acme Market at Union Avenue in Upper Darby. The car's vehicle identification number on top of the dashboard had been changed. A member of the Warlocks Motorcycle Club had been seen driving the car. When police went to question him, they found he had died from a drug overdose. In 1997, a tip came in that the men were buried on private property located on Route 694 in Woolrich Township. A search was conducted, but nothing was found. Foul play is suspected.