Cox and Granados responded to a call from Valley Community Church on Del Valle Parkway for a possible heart attack victim. Cox arrived first and found the unidentified victim on the floor, and administered a shock from an automated external defibrillator. Granados arrived on the scene minutes later to find the victim had stopped breathing and had no pulse. Cox began chest compressions while Granados administered rescue breaths.
When rescue workers from the Livermore-Pleasanton Fire Department arrived on the scene, the victim developed a slight pulse and had begun to breathe. A short time later, the victim's pulse and breathing got stronger. He was taken to Valley Care Medical Center where he was listed in stable condition the next morning.