HOUSTON -

Edward Ascue was about to board a flight to Mexico, but before he did he stopped at a gas station in the 15600 block of JFK Boulevard to fill up his rental car, he had no idea he was about to become a crime victim.

Officials say two thieves stole his briefcase out of the back seat of his car. Ascue was inside the gas station when the crime occurred, he told Local 2, his whole life was in that briefcase.

"$5,000 cash for my trip, my passport, my Social Security card, mine and my whole family's," Ascue said. "I'm very, very upset."

The crime was captured by the gas station's surveillance cameras. Ascue thought he locked the car remotely but realizes now he may have hit the wrong button. 

The is a troubling new crime trend happening at businesses along JFK Boulevard near Bush Intercontinental Airport. Local 2 first reported on it in February.

Police say criminals canvass parking lots looking for things left inside cars then watch and wait for the right time to strike. 

Sometimes the cars are left unlocked, sometimes the thieves break-in. Police say it's important not to leave anything valuable inside your car, not even for a minute. 

Ascue is taking the car to get processed for prints and is hoping police catch the criminals.  In this recent crime, the two suspects were driving a newer model Ford Focus. There was no front license plate and the rear plate wasn't visible on camera. 

"This is not the first time this has happened at this location," Ascue said.  "I'm hoping to collaborate with the police and catch the thieves."