From NFL.com:

Nkemdiche, the former Ole Miss defensive lineman, admitted he was drunk at the time of the fall, but denied that marijuana discovered in the hotel room by police belonged to him. He also said his Rebels teammate, Tunsil, was among those at the hotel room, but did not say whether the marijuana belonged to Tunsil.

"There were more people in my room. The hotel was under my name, and nobody wanted to take the fall," Nkemdiche said.

Yikes! Tunsil seems to have overtaken Bosa as the media's presumed #1 pick (although, ok--let's see what they're saying after the combine). I'm sure he appreciates his teammate using the combine media day to throw him under the bus. 

Also, I love the word choice on that last quote. Come on, Robert. Just because no one else wants to "take the fall" doesn't mean you need to literally take a fall.