Gonzalez tweeted about the shooting just after 6 p.m.
He said it happened at apartments on Uvalde Road just inside Beltway 8 between Wallisville Road and Woodforest Boulevard on the northeast side.
Gonzalez said the man and woman were sitting in a vehicle in the parking lot when they were shot. Investigators believe some sort of transaction was taking place.
The woman was pronounced dead at the scene and the man was taken to an area hospital in critical condition, according to Gonzalez. He was later pronounced dead, too.
Gonzalez said two men left the scene just after the shooting.
“We’re checking for surveillance video to try to give us a lead as to what might’ve happened at this point." HCSO Sgt. Sidney Miller said. "We suspect that this may be some type of — there was a transaction that had occurred in the parking lot.”
If anyone has any information, they're asked to call the Harris County Sheriff's Office at 713-274-9100 or Crime Stoppers at 713-222-TIPS (8477).