If someone expresses murder fantasies, what can you do?
If someone says they know where people could be buried in the forest, what do you think? He said he knows places so deep that not even the police would be able to find them.
Is he a danger and if so how to act
He said this more than once
If there is a danger, you can report it to the emergency call, then it comes to the check for 2 hours in the psychiatry and will then be released depending on the danger, be kept for 48 hours or remain permanently there for recovery.
It’s hard to judge. We don’t know if he’s a depp that thinks it’s cool to say something or if he has serious mental problems. In case of doubt, you should inquire about his family.
So? Every Geocacher knows places where you will never find someone;-)