just days after the fire, branch davidian david thibodaux places the blame for the deadly inferno squarely on the fbi. what was the cause of the fire? more than a decade later, he s not so sure. my opinion, how did the fire start? i simply don t know. i just don t know. i don t believe that anyone inside set that fire. i didn t see anybody pouring any kind of fluid or any kind of accelerant or anything like that. my understanding is the accelerant used to disburse cs gas in a room is flammable. lightly flammable, nonetheless flammable. and i ve actually talked to fire marshalls who said that as soon as they saw the tanks go in and make those big holes, they knew that building was going to go up like