My experience was a bit unorthodox...
I first spoke about it when I forwarded a FB convo between me and "him" to my family with the evidence of how vile their precious brother / cousin / uncle is.

See I confronted him via FB inbox messaging and he admitted to everything, I told him to quit talking to me or I would expose him, then he basically dared me, so I did!

Most liberating thing I ever did, now I don't have to pretend to like a "brother" I can't stand and nobody has to ask why I have a "no contact" rule.

No intention of pressing charges though, he doesn't even live in the same country as me and it would kill my elderly mother to know she raised a monster.