The carjackers used relay boxes — devices that can be programmed to send signals through walls and trick a car lock system. One box, placed on the house's exterior, received a signal from the owner's key and transmitted it to the second box held right next to the car. After the doors were unlocked, the men got into the car and left the crime scene.
Police reportedly haven't found the stolen Mercedes yet. To protect against this type of theft, car owners are advised to use devices that lock the entire steering wheel and install a tracking system that will increase the chances of finding a stolen vehicle.