Zack
99% hot gas
For the record, this also applies to Visorslash with his ability. He is not clear. The argument that applies to me (didn't kill last night to implicate Sprig) applies equally to Visorslash.While we know Sprig's power, it could just be a secondary ability for killing with the caveat he can't pair anyone his teammates are targeting.
choxorn - Totally clear as far as I'm concerned. He killed an orc at night, the orcs tried to block him, the orcs tried to lynch him. Choxorn is not an orc.
Backwards Logic - Clear because he knew Sprig's odd night action before it was revealed in thread. Only way he's an orc is if Sprig/Visorslash is also an orc, and a 4-person orc team is not really worth considering at this point.
No one else is cleared, not even me. Sprig is the last orc 90% of the time, but that last 10% is NOT choxorn, it's Visorslash. In which case, through the use of his ability, he wins the game anyways without having to kill anyone. Which means it might be better to lynch Visorslash today and Sprig tomorrow.