. >> former los angeles police officer jerry winkle is a county commissioner up in idaho now.riend. that is, before a night of poker and booze when he said hall made a disturbing revelation that he shot himself in the leg when he was a cop in order to get medical retirement benefits. >> chris had been drinking beer and he came right out and told me that he had shot himself. >> but there was more. d.a. investigator tom dove had discovered a secret, not in chris's past, but in christy's. >> there had been infidelity in the marriage for six years prior while chris hall was in custody in idaho. >> christy's affair was relatively brief, years earlier. but she'd been in phone contact with the man-days before she died. had chris found out? impossible to know. but when investigator dove talked to christy's coworkers at the clinic where she was an x-ray technician, some of them noticed a sudden change in her usually vibrant personality. one coworker offered more. >> she told us she was contemplating a divorce. >> if true, and it was only an if, it might well persuade a jury. also the p