Yes... Evans quit for a little while, and then was allowed to come back. He was never the same after he quit though. I think he then ended up transferring to somewhere like Emporia State.
Evans was incredible as a Freshman at NU. Didn't do much after that season though.
Yeah, that locker room scuffle leading to him breaking his tailbone probably contributed, both physically and in terms of team chemistry. Or so went the rumor at the time.