David Howard Dixon, 44, accused of the double murder of Ervin Raymon Beacham and Jose Sagahon Ticante last year, has been found competent by mental health officials to stand trial for the crime.Dixon was named in a November 2012 sealed indictment charging him with two counts of first-degree murder in the deaths Beacham and Ticante.The story began when city police dispatched to 311 Tommy Harrell Street on Aug. 7 of last year found Beacham dead from apparent gunshot wounds on a couch inside the residence.Ticante was found shot to death in the backyard of the residence, his body hidden under a tarp in a pile of lumber.The Tennessee Bureau of Investigation, the Smithville Police Department, the DeKalb County Sheriff's Office and the 13th Judicial District Attorney General's Office conducted a joint investigation.Dixon was arrested on previous violation of probation and failure to appear warrants shortly after the grisly find, and was held at the DeKalb County Jail without bond until the indictment was handed down.He is currently incarcerated at the Henderson County Jail.After an evaluation at Plateau Mental Health Center in Cookeville to determine his competency to stand trial and his mental condition at the time of the killings, Clinical Psychologist Dr. Sandra DeMott Phillips wrote in a letter to the court that Dixon “...has sufficient present ability to consult with his lawyer with a reasonable degree of rational understanding and a rational as well as a factual understanding of the proceedings against him. “After completion of the evaluation, it is my opinion that at the time of the commission of the acts constituting the alleged offenses, severe mental disease or defect did not prevent the defendant from appreciating the nature or wrongfulness of the alleged acts.”On July 22, Judge Leon Burns, Jr. set a Dec. 2 trial date in DeKalb County Criminal Court for Dixon.Authorities said Dixon’s protracted criminal history locally includes charges for possession of a handgun while under the influence, manufacture and delivery of a Schedule IV controlled substance, assault, public intoxication, violation of an order of protection, aggravated assault, theft, domestic assault, and simple possession.