Ronnie Donald Cox, a 46-year-old Addison Police Department officer and U.S. Marine Corps veteran, died of wounds sustained during a narcotics raid in Dallas. On December 12, 1986, he was accidentally shot by a fellow officer who did not know other officers would enter the house from the direction where Cox and his partner were entering. Cox was taken to Parkland Memorial Hospital and succumbed to his injuries on December 15, 1986.

The shooting was ruled inadvertent gunfire; no arrests, murder charges, or related litigation are reported and the death was treated as an accident. Cox had served with the Addison Police Department for eight years and was remembered by colleagues and the community for his dedication. He is buried in Cox Cemetery in Canton, Van Zandt County, Texas.

If anyone knew Officer Cox or has information about that operation, please share what you can.