Yes, it's the 'villain' from King of Kong. Looks like Jobst claimed Mitchell did some frivolous lawsuit to some guy named Apollo, who was then forced to settle and had to pay a ton of money to Mitchell, which destroyed his life and led to Apollo killing himself.
Turns out none of that was true, and Jobst got it off an anonymous reddit comment. Apollo had serious mental health issues and his suicide had nothing to do with Mitchell in any way. Jobst was told of this by a mutual friend, and gave a half assed retraction at the end of a completely unrelated video that few people saw. After being sued, he just went all in on a "Billy Mitchell's reputation is so bad there's nothing I could say that would defame him" defense and made a bunch of videos about it while never mentioning the whole suicide thing and just hammering him on how he obviously cheated at video games, so this whole lawsuit was a joke and he couldn't possibly lose. Now he's trying to play the "I never said it WASN'T about the suicide thing y'all just assumed" card, and nobody's buying it
The best part is, the shit he pulled is the same kind of thing he makes his videos exposing.