If I confess something like a murder or something that would traumatize the priest during the confession, can he tell someone?

First things first, I’ve never done a confession this is pure curiosity. I know that a priest is forbidden to tell anyone what is said during confession. But what if it’s something like a murder or like the person having a kidnapped kid in their basement? Can the priest like tell the police? Or can he at least get like a psychiatrist (if it traumatizes him in a way)?