So we can see that the tyrants aren't afraid to just cut to the chase this round..
As for the lynching kill, it could be Graviton, but I find it much more likely that it was Scorpio, based on the circumstances and hints in Kuro's story..
Scorpio - EoR
Procrastinator's Toxin - Target a player; if they are the last person to vote on a player, do not actively vote, or change their vote for that day, they gain votes equal to the player they voted on plus one.
Siwasolek was the last person to vote on Captain Scibra, and Kuro's story says he became ill. Like, poisoned. So Scorpio's either maf or a dumb civvy. That's enough evidence for me to lynch them. Mesa, if you would be so kind as to tell us who Scorpio is?
EDIT: Re-read, it actually says Siwa just felt faint...And then exploded. Sounds graviton-y, actually. Bleh. It's a tossup. I stand by saying it was Scorpio though.