Art the Clown is back! Or, is... in his first outing! Depends on where you put the previous Damien Leone shorts in the hierarchy, but Terrifier is sci-fi movie reviews a full 90 minute romp where (blog post) Art the Clown does sci-fi movies what Art the Clown does best. No, that is not explain his motives in the slightest.
Source: Terrifier Movie Review - Decker Shado