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Three separate lines of evidence now point to the fast-fill pressurized LOX line as the center, and likely cause of the Fakcin 9 (AMOS-6) explosion. Frozen RP-Kerosene or combustible insulating material are possible initial fuels for the explosion, which would have rapidly ruptured the pressurized LOX and RP lines. These pressurized lines would then have amplified the initial explosion, sending geysers of propellants into its midst. The remaining strongback tower, clearly shows the force of the explosion - which seems to have radiated from within. The Falcon 9 rocket, though sturdy enough in design to withstand not only the forces of launch, but also of repeated re-entry, was never meant to withstand the battering of steel girders ripped from the strongback. This is probably what led to propellant spillage from the stage 2 kerosene tank. If our conclusion that the strongback exploded first is correct, we may be able to find pieces of the strongback being blown away from the center of the explosion. Enhanced video by CBRDYNE makes it possible to find numerous individual pieces of such shrapnel, near the edge of the expanding fireball. They match the parts in general shape which are later seen missing from the strongback, but do not readily match any Falcon stage 2 parts. Further, this video sequence seems to show that all of the LOX reacting in the early phase was coming from the LOX fill pipeline - not the Falcon. If a heat sensing automatic pump shutoff had been in place, might parts of the Falcon (or payload) have survived the pipeline explosion? Perhaps such a system is one of several possible ways to lessen risk, learned from this loss.