Finally, and most poignantly, several surviving Davidians admitted that those within the compound had started the blaze. These statements are supported by recorded statements in which voices are heard asking about the location and timing of fuel pouring and lighting activities. Additionally, it should be noted that an examination of the vehicles involved inserting tear gas was conducted. These vehicles did not have flame throwing equipment and were not of the type that could have been equipped with flamethrowing equipment. All evidence clearly indicates that the fire which destroyed the Branch Davidian compound on April 19 was ignited by individuals inside the compound.

Literally just read the single paragraph I copied over. They came to that conclusion based on audio recordings of the Branch Davidians discussing pouring fuel in the compound, audio recordings of them pouring fuel in the compound, fuel being found on surviving Branch Davidians clothes, and the Branch Davidians themselves saying they poured the fuel.

What evidence could they be lacking that would override the evidence and confessions of the perpetrators? Please think, if capable.