I can't see Ichi being a good lynch today. I mean.. if he's not really the psychologist then:
1. Detective, 1-shot Commuter, Goon Cop; 1-shot Investigation Immune + Serial Killer
2. Watcher, Jailkeeper, Psychologist; 2-shot JOAT
3. 1-shot BP Townie, Jailkeeper, Bodyguard; Traitor Knows Mafia
4. 1-shot Commuter, Psychologist, Detective; Mafia Knows Traitor
5. Watcher, 1-shot BP Townie, 1-shot BP Commuter; 2-shot JOAT
6. Detective, Jailkeeper, Psychologist; Mafia Knows Traitor + Serial Killer
7. 1-shot Commuter, Jailkeeper, Detective; Traitor Knows Mafia + Serial Killer
8. Goon Cop, Psychologist, Bodyguard; 1-shot Investigation Immune
We're in one of the four left. Someone could have a PR that disprove this, right? If I'm a 1-shot BP townie, then we do not have a psychologist, for instance. That takes care of two setups. Maybe that's all that can be cleared with one piece of knowledge. With two pieces, I'm sure more can be cleared.
More flips or a mass claim can probably go pretty far with verifying Ichi's claim. Ash? You're the setup plan guy.
Either way.. doesn't make sense to lynch Ichi without more info, I think. My hunch now is that he's town and telling the truth.