Actually the RP did play a significant role in the outcome of this event. The Commander asked him to go back into the cabin to check on what was happening. The RTO was at around <70kts and they had shutdown and firing of the bottles was complete. They were running the checklist and starting the APU when the RP came back up say there was a significant fire outside the aircraft and this is when the evacuation was ordered. The fire was caused by a ruptured 2" fuel line and it had spilled about 40 Gal of fuel. Both the spar valve and engine firewall shut off worked as designed. There will be more news regarding this event over the next week or so.