I was reading through the Bon Jovi News archives of the NY Times. There is an article from 2003 that describes a William O'Brien, sound engineer for Bon Jovi, who was incarcerated for sexual activity with a fifteen year old girl.
The article tells how the Judge would not allow him out of prison to attend a Bon Jovi concert. He appears to be the same age as Obie O' Brian. Anyone know the answer?