User blog comment:Jkphantom9/Shane Newville is no longer at Rooster Teeth/@comment-11188061-20160109131831

Well, judging from the below it probably is a depression issue. This is pure speculation (and honestly there's a reason why self censorship exist), but the bits of info I've seen here and there, plus his Twitter profile pic seems to suggest he thinks he and Monty are like the light and the shadow. With Monty gone, it's possible he lost his direction.

Another possibility is that he's facing a medical problem.

The third one is because he left because they can't come to an agreement of... something.

The fourth... well. This time I really can't say, because it's unnecessarily cruel. Some things better left untold and all the shizz.