In the early hours of September 18, 2023, 31-year-old Isaac Flores was found shot to death in Port Arthur, Texas. His body was discovered just after 12:30 a.m. in the driveway of a home on the 1900 block of Green Avenue, a residence where he did not live. The Port Arthur Police Department opened a homicide investigation.

Investigators quickly developed a strong lead and identified 48-year-old Armando Martinez-Martinez, also from Port Arthur, as a suspect. Authorities said Flores and Martinez-Martinez knew each other, but a clear motive had not been determined. Family members of the suspect reported he had been with Flores shortly before the shooting and drove away moments before the body was found; Martinez-Martinez then fled the area. A multiagency alert was issued, and he was located in Bexar County about 14 hours after the shooting and initially held without bond as a flight risk.

A search of Martinez-Martinez’s apartment reportedly recovered a partial box of .40 S&W ammunition that matched shell casings found at the scene. An indictment on murder charges was returned by a Jefferson County grand jury on October 12, 2023. Does anyone in Port Arthur have information about Flores’s last hours or about contacts he had on Green Avenue?