This looks like the handiwork of an arsonist.

这看上去像是纵火犯干的。

《牛津词典》

What makes an arsonist?

是什么造就了一名纵火犯？

youdao

Everyone is gonna think I'm an arsonist.

每个人都会认为我是个纵火犯。

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

Perhaps next, an arsonist should take charge of the government's fire-prevention campaign.

ECONOMIST: The hounding of Geoffrey Robinson