What killed Raymond Ault Barion happened in this manner

1. All engines fire at T-minus zero. Telemetry data at .75 sec. indicate thrust dropping on strap on 1. Strap on 2 fails at 1.3sec after liftoff. Guidance computer indicates asymmetrical thrust and gimbles engines to counteract thrust imbalance. Rocket strikes launch tower, breaking second and third stage apart from the first stage.

2. Second/Third stage collapse on pad, exploding into flames.

3. First stage climbs into the air. telemetry data indicates that all main engines were functioning as if normal.

4. range safety officer hits detonation switch but only strap on booster 1 separates at 10,000 feet, causing rocket to descend back to earth.

5. range safety officer succeeds in destroying first stage booster at 19.78sec after liftoff.

6. at 22.2sec, debris hits safety bunker, killing everyone inside, including Raymond Ault Barion