The current crisis involves an evil soulless vampire roaming freely. This isn't the first time this has happened and probably not the last. This vampire, however, through a process I'm afraid I don't know can be changed so that he is not a danger to us.
We may need to assist in protecting the innocent if this vampire turns others before he's dealt with. And it just so happens that fire is something they fear. And is capable of killing them if it comes to that.