The awesome Alison Michalk (you are reading her blog right?) has a post about how to deal with suicide threats.
It’s a good post, I want to simplify it.
Call the police.
If you get a suicide threat, call the police. If you get a death threat, call the police. If members threaten each other, call the police. If members are conspiring to commit a crime, call the police. If you’re not sure, call the police.
Don’t be shy. You don’t want a death on your conscience nor a crime on your record.
Call the police. First time, every time.