Norman Eugene Gene Burden, 67, was found dead inside his Sayre, Oklahoma, home on Easter Sunday, April 21, 2019, in what investigators quickly treated as part of a violent double homicide. Earlier that morning in Elk City, Monique Smith was discovered shot beside her vehicle; her car was missing when officers arrived. Monique’s vehicle was later found parked at Burden’s address, and Burden’s own truck was missing from Sayre.

OSBI and local law enforcement linked the two deaths and identified Gregory Killough as a person of interest after witnesses placed him with Monique about an hour before she was shot. Killough was stopped in Tulsa the next day driving Burden’s truck, taken into custody after officers located a handgun, and later arrested on counts that included first-degree murder, larceny of an automobile and felon in possession of a firearm. Burden’s pit bull was found close to his body with gunshot wounds but alive.

The case drew statewide attention as investigators worked to reconstruct timelines and motives. If anyone knew Gene’s routines, the movements of his truck that weekend, or saw Monique in Elk City that morning, please share what was seen.