Thomas Martin was 71 when he disappeared from his Tulsa, Oklahoma home in late June 2010. The last known contact was a phone call with his son on June 27. The next day the son found Martin’s car in the driveway, the answering machine off, medications left behind, and what appeared to be blood inside the vehicle; he reported his father missing.

Investigators later learned Martin’s Pikepass had been used on June 27 and again in the early hours of June 28 at the Coweta Entry Plaza, suggesting movement on area roads around the time he vanished. Two and a half years passed with no breakthroughs. In January 2013 hikers found skeletal remains about six blocks from Martin’s home; those remains were identified as his. An autopsy determined he died of a gunshot wound to the head and his death was ruled a homicide.

No arrests or publicly identified suspects have been announced; the circumstances of his final days and who killed him remain unsolved. If anyone has information about Thomas Martin’s movements in late June 2010 or the Coweta Entry Plaza activity, please come forward.