Although what you’ve written here should suffice as a cathartic you could write it all down, attach some pictures and put the envelope away “just in case”.
That said, stay the hell away from him you dumb bastard.
Given his age and history he’s, if alive, not in good physical or financial health. You being who and what you are, would just drag the reprobate home with you, in a rush of misplaced empathy, placing a huge strain on you and yours.
Let lying dogs sleep.
