At around 1 p.m. Wednesday, St. Ann, Mo., Detective Dave Campos was in the police department's break room. Detective Jason West told KTVI TV that Campos felt shooting pain in chest. He went to grab heartburn medicine in the cabinet and hit the ground.
One of the detectives did a sternum rub to no avail, then one of the officers started CPR.
Finally, one of the detectives ran down the hall to the jail and got a defibrillator.
After the machine administered the shock, Campos, according to West, shot 6 inches into the air, but West could see the life come back to him and he started to blink his eyes.