More than enough evidence to execute Lizard
I think he killed TaKo.
WhiteLizard: Well… After the party ended, everyone went to different rooms. I and a couple of girls ended up in a room opposite the room where nik312 was. I don't remember who had the key, but whoever had it lost it… So, I and the girls couldn't leave that room until morning.
Added after 35 seconds
and by the way, I'm talking about you changing your nickname. What if the clue was on the blue nickname?)

За всем следят машины благодати и любви.