The couple's bodies were discovered early on the morning of Sept. 30, by Brandy Allen's father, who was out checking his cattle when he noticed the vintage El Camino owned by the Allen's was sitting in the driveway with a door open.

The man wanted on murder charges in the shooting death of a Tunas couple has a criminal history of tampering and stealing. That may have been what allegedly drew Billy Sage Medley and Jeffrey Stevenson to the rural home shared by Joseph and Brandy Allen on State Road PP. 

The couple’s bodies were discovered early on the morning of Sept. 30, by Brandy Allen’s father, who was out checking his cattle when he noticed the vintage El Camino owned by the Allen’s was sitting in the driveway with a door open. Investigators believe the couple were drawn outside to investigate after hearing noises and were shot and killed in their yard.  

Stevenson, 22, of Macks Creek was taken into custody Wednesday evening by the Lake Area Major Case Squad. He is being held without bond on 2 counts each of murder, armed criminal action, stealing and burglary. Medley is still being sought. 

Several pieces of evidence allegedly tie the two to the crime. A truck stolen from the Allen’s home was found in Macks Creek adjacent to property owned by Stevenson’s grandmother where he lived. The truck was parked in a wooded area on a logging path.

Investigators have also been able to obtain video from two locations showing the stolen vehicle and a truck identified as belonging to Stevenson around the time of the murders in the Tunas and Macks Creek areas. 

The two, Medley and Stevenson were allegedly seen the evening prior to the murders with a revolver style gun. The two were allegedly looking for paint for Stevenson’s truck. The two then allegedly sold a .45 caliber pistol and ammunition within hours of the murders. The ammunition turned over to investigators matched the evidence found at the Allens' home.  

In court documents, Medley, 22, is listed as homeless, but has past addresses in Lebanon and Camden County and is referred to as Sage Medley. He is described as a white male, brown hair, hazel eyes, 6’, between 190 and 247 pounds. Medley is believed to be armed and should be considered dangerous. 

The public is being advised to contact law enforcement if Medley is seen or have information on his whereabouts. Dallas County can be reached at 417-345-2441 or call 911. 

The Lake Area Major Case Squad is handling the investigation. Officers from Dallas, Camden, Morgan and Laclede counties are assisting with the investigation as well as the Missouri Highway Patrol, Lake Ozark, Versailles, Laurie and Waynesville police departments and the Lake Area Narcotics Enforcement Group.