Dallas police released new surveillance video Thursday of a slain man's missing pickup truck in use on the day after his body was found.
Two men seen riding in the pickup are considered persons of interest in the case, Deputy Chief Sherryl Scott said.
Firefighters found the burning body the truck's owner, Delores Gomez-Martinez, 24, in a drainage ditch behind an apartment complex in the 2500 block of Illinois Avenue on July 2.
The Dallas County medical examiner is still working to determine an official cause of death, although police say he died of homicidal violence.
After police identified the victim, his family helped police determine that his truck was missing.
Detectives learned that the truck had been at a convenience store near where his body was found. Surveillance video from the store clearly shows two men arrive in the truck, but detectives have not been able to identify the men.
Investigators do not know how the men got the truck, which was later found partially burned in Dallas County.
Police ask anyone with information to contact Detective Sayers at 214-283-4849. If you wish to remain anonymous, contact Crime Stoppers at 214-373-TIPS (8477).
NBC's Keaton Fox contributed to this report.