The problem is, a lot of those “tell-tale burn marks” for detecting accelerants are often given more weight than they should be.
My mother watches a lot of those “true-crime” shows, and one from a few months ago showed a man being convicted of arson and murder (his daughters died in the fire) based on the burn pattern, and then it covered his appeal and had a bunch of experts explaining why these patterns don’t necessarily mean that the fire was deliberately set.
