cross-posted from: https://hexbear.net/post/8223000
Read in an internet comment, so take with a grain, but he apparently had a multistage plan. Started a small fire, fire dept came to deal with it, and company brass had them turn off fire suppression to limit unnecessary damage to product in other areas. It was then that they lit a bunch more fires, and by the time the figured it out, it was too late.