. >> nancy's remains were discovered in may 2019, in the small town of topock, arizona. investigators were able to officially confirm the identity of these remains is nancy hart and the cause of death being gunshot wounds. >> finally, they knew. but would justice be served for nancy's family or any of the others? >> the main suspect in this case is robert canha kaedan. authorities say he was the last person to be seen with nancy hart, but at the time that nancy was finally identified, canha cain had already died in prison when he was serving a sentence on unrelated charges. >> just three months before her remains were id'd. robert carnahan died in prison, where he was serving a 16 year sentence for fraud, forgery and theft charges, according to the mojave county sheriff's office. he was the main suspect in her disappearance and a suspect in the cases of neva and verna. their bodies have not been found. >> there are so many questions that have been left unanswered with the death of carnahan and never admitting any responsibility to the fate of these women. >> now, verna c