The town discussed heavily amongst themselves. CP lead much of the charge against Flashflood, who insisted he was town. CP was confident and having none of it. Eventually everyone else sort of agreed, and surrounded Flashflood. When the circle disappeared, he was strung up.
Spoiler for Flashflood:
Inui Banjin - the Seraph Knight
Inui Banjin is a camouflage-wearing, hand-to-hand fighter who mirrors Sanosuke in intelligence. He is the student of Tatsumi, the leader of the ninja group that tried to kill Kenshin in the rebellion. As Tatsumi was killed by Kenshin, Inui claims to join Enishi's Jinchu campaign for that reason, but he is actually using his master's death as an excuse to fight and prove how powerful he is. You are the Seraph Knight, and you may choose one player to protect at night. This choice is permanent. You may only choose again if that player is lynched.
You win when all threats to the Villains have been eliminated and there is at least one Villain Aligned player alive.