CONWAY, Ark (AP) — A former Carson City emergency room doctor accused in a 2002 double slaying has been found mentally competent to stand trial in January for murder.Richard Conte, 62, was charged in 2011 with capital murder for the execution-style slayings of businessman Carter Elliott, 49, and Timothy Wayne Robertson, 25.Each of the men was shot in the head and were found dead in Elliott's Conway home on Clear Creek Road on May 19, 2002.Arkansas Circuit Judge Charles E. Clawson Jr. ruled Monday that Conte, who has pleaded not guilty, can be tried starting Jan. 8. If convicted, Conte …