Gregory Weinarcheek is one of many Secret Service agents, bodyguards to the President.   Normally a driver, today Greg is assigned the Colt RA-51, their only semi-automatic weapon.   His station in the open presidential follow-up limousine, sitting at the back atop the trunk with his feet on the rear seat cushion ;  another agent is on his right and still others are around him, in seats or standing on running boards on both sides of the car.   The RA-51 is on the limo floor loaded with ten point-223-inch cartridges with frangible, or explosive, bullets, primed, cocked, safety-catch on ;  she is ready to go.

       Elroy's first shot belies the balmy day, causing agents, relaxed until now but rudely aroused, to look around.   Greg looks behind, turns forward, puts one foot onto the car’s floor, reaches down and picks up the Colt with his right hand.   He straightens back, lifting the rifle, pointing it forward, low and inboard, releasing the safety catch and automatically placing his finger through the trigger guard.

       Agent Mike Nansy drives the follow-up car, his job to keep his vehicle close to the presidential limo, allowing agents swift and easy access in case of emergency.   Elroy’s first shot, sounding like a firecracker, sends a danger signal, causing him to tense slightly, his heightened senses awakened to events around him.   The explosion of the second shot, alerting everyone, sets alarm bells ringing in Mike’s mind.   Gunshots !   Outta here !   Go !   GO !  One second later in frustration he jabs his foot on the accelerator and the car lurches forward.

       Standing on the rear seat cushion with nothing to brace against Greg is suddenly thrown back by the car’s forward jerk, his arms fly out and the Colt, pointing forward, swings up in an arc.   His right arm moves back, his finger contacts the trigger and the rifle fires.   The frangible bullet, trajectory horizontal, just misses the car's windshield and hits the President ten feet in front, putting a small hole in the back of his skull and blowing out a fist-sized chunk inches above his right ear towards the temple.