Arson is a very efficient way for a black person to kill a lot of white people with very little effort.
Stack a pile of dried brush, fallen trees and such - place a wooden chair on top of said pile directly in the path of one of the firestorms he set.
Place remote cameras.
Bind this person to said chair.
Broadcast for all to see.
The word gets out fast that starting conflagrations ain’t so cool after all.
Yeah, I know this circumvents due process however this fire freak will not be setting fires ever again.