Got a friend currently doing time in Texas for basically the same thing. Here's hoping this gets the case some notoriety. http://thearsonproject.org/case-studies/curtis-severns/
How can anyone in Texas safely make an insurance claim for fire when the risk of misunderstanding is so great?
In this particular case, it all seems to hinge on people's opinions of whether a flying can could have jumped over some barrier or shot a plume of flame in some direction and other subtle details about the scene that can't possibly be known without actually reconstructing or simulating the whole thing.