Kentucky State Police in Harlan are searching for a weapon that might have been used in the slaying of James Feltner of Lynch.
Feltner, 23, had been missing for 10 days when his body was found at an abandoned strip mine in Harlan on July 25. He had been shot.
On Monday, police arrested Tommy D. Polson, 35, of Cumberland and charged him with murder, robbery and tampering with physical evidence, said trooper Shane Jacobs. Polson was being held in the Harlan County Detention Center on a $5 million bond.
The weapon, an Iron Works AR-15 rifle (serial number PS230007), is black with a stainless steel barrel.
An undated photo distributed by state police shows Feltner holding the weapon.
Jacobs said Feltner owned it and traded the rifle at some point. But he said police don't know if Feltner traded it to Polson or if Polson acquired it some other way. The weapon has since disappeared.
Police say they think the rifle was taken to Union or Claiborne counties in Tennessee for sale or disposal.