> the first suspect, mike harting, was a friend of john helble's. witness recalled seeing harting's truck parked near helble's home around the time of the murder. >> mike harting was good friends with john. we knew that john and mike had some narcotics business together. >> but harting had an alibi for the time of the murder, and he passed a polygraph test. the next two suspects, andrew rich and sharon schneider, were friends of john's who lived about an 18-hour drive away in greybull, wyoming. >> we learned from a good friend who saw andrew rich and john helble together on january 18th of 1999 that in fact andrew rich had been at the trailer house of john helble. >> but andy said john was alive and well when he and sharon left to return home. police searched the couple's apartment and found marijuana, methamphetamine, and several .22-caliber bullets, the same caliber used to kill helble. these bullets, along with the slugs from helble's body, were sent to the fbi lab for a neutron activation test. >> that's where the lead is shaved off of the bullet