This looks like the handiwork of an arsonist.

这看上去像是纵火犯干的。

《牛津词典》

Everyone is gonna think I'm an arsonist.

每个人都会认为我是个纵火犯。

youdao

No one sees a hacker, a slasher and an arsonist here.

没有一个人看到有一个黑客，一个断木机器和一个纵火犯在这儿。

youdao

An arsonist tried to burn down a building after being allowed out of prison on a work placement.

BBC: Prisoner Edward Macdonald 'tried to burn down building'

"We do not expect an arsonist to be a firefighter, " he said.

BBC: Hague: Giving arms to Syrian rebels cannot be ruled out

My neighbors, were they ever to introduce themselves, and upon hearing that I was an arsonist and a murderer, would start talking about the virtues of Bermuda grass as opposed to Kentucky blue.

NPR: Chapter 1