>> he couldn't get it to work. and he even said that he sprayed some oil or solvent on it to try to get it to work, and it didn't, wouldn't work. >> reporter: but no oil or solvent was ever found to corroborate his story. then there was the biggest question of all -- >> how do you get under a car and have a car fall on you? it just didn't make sense to me. it never has. >> reporter: once again, harold seemed to tell multiple stories. patricia montoya remembers him saying lynn went under the jeep to retrieve a lug nut. lynn's old friend kim laferriere says harold told her lynn was going after a flashlight, not a lug nut. and roxanne burns remembered harold saying something else entirely. >> he said, she was changing the tire, which made the hair on my neck stand up straight because that -- i was like, women don't usually change tires when a man is around. >> reporter: investigator charlie mccormick couldn't see any good reason for lynn to get