An undercover drug deal went awry Tuesday night, setting off a parking lot shootout that left a police officer and a suspect dead and two other suspects wounded.

Two more suspects escaped but were captured at a nearby apartment complex three hours after the 10 p.m. shootings.The police officer, identified as narcotics detective Lawrence Cadena, 43, was shot in the head with a 9mm assault rifle and pronounced dead at Baylor University Medical Center. Jessie Lucio, vice president of the Dallas Police Association, said the officer also was shot in the chest.