Anthony and Catherine Costner (Credit: Channel 2)

Third arrest in killing of Cobb couple shot in front of 3-year-old

A man who allegedly set up the drug deal that led to a double homicide, then drove the suspected gunman to the hospital is the third suspect arrested in the Powder Springs deaths of a young couple.

Raymond Ladell Webb was arrested Sunday night and charged with concealing a death, hindering the apprehension of a criminal and a felony drug charge, Cobb County jail records showed.

According to police, Webb used his cellphone to set up a meeting so roxycodone could be sold, his arrest warrant states. It was during that alleged drug transaction that Anthony Costner, 24, and his 22-year-old wife, Catherine, were shot and killed, according to police.

“The accused further concealed his involvement by transporting the suspect in the death of the victims to a hospital far away from the incident location whom had sustained a gunshot wound and left him at the hospital without notifying law enforcement,” Webb’s arrest warrant states.

Shortly before 2 a.m. Aug. 6, Powder Springs police responded to what they thought was a single-vehicle accident along Parks Drive near Sharon Drive. Instead, when officers found the red 2000 Pontiac Grand Am backed into a ditch, they found Anthony Coster dead from multiple gunshot wounds, his wife shot, and the couple’s 3-year-old daughter, who was unharmed. Catherine Costner died after being taken to a hospital.

Eight days later, police said two people had been arrested in the case.

Roy Hicks, 39, of Smyrna was charged with murder, aggravated assault, possession of firearm by a felon and child cruelty. Demarco Thomas, 22, of Marietta was charged with conspiracy to commit a violation of the Georgia controlled substances act, concealing the death of another and hindering the apprehension of a felon.

Webb allegedly drove Hicks to Atlanta Medical Center for treatment of his injuries, then hid the vehicle used in the killings, according to police.

Thomas, Webb and Hicks were both being held without bond Tuesday night in the Cobb jail. Hicks is listed in jail bookings as Roy Brown. He is scheduled for a hearing at 9 a.m. in magistrate court on Thursday.