mason was married, had children and grandchildren. he owned a number of gas stations, and had not been arrested for any other crimes in the years since the murders. >> now we've got a real suspect. but we were still a little bit apprehensive. okay. it's a fingerprint. it's an old fingerprint. what else do we have? >> one of the robbery victims, bob dewar, was brought in for a photographic lineup. but couldn't identify mason as the man who stole the car. so police needed to look further. >> they needed something more. and "what more" was me. >> the man who bought the murder weapon in 1956 and rented a room at a ymca in shreveport, louisiana, had printed his name on the register. paul edholme, a forensic document examiner, was asked to compare gerald mason's handwriting to the signature of george wilson on the ymca