Board Thread:False Info and Speculative Discussion/@comment-27411820-20160211213841/@comment-5285305-20160218062139

Alphawerewolf5 wrote: Mason was with Scott while the Beast was somewhere else (5x10), Mason was with Liam while the Beast was somewhere else (5x11) Mason was not with Scott when the Beast was reported running around Beacon Hills in 5x10. This was the night before the Supermoon, not the night of.

The Beast doesn't even show up in 5x11.

I'm not sure what "somewhere else" means, but it's definitely not proof.