This isn't rumor, these are facts stated by both parties and found in the record. The children were living with Crystal, which made her the custodial parent, until he kidnapped them.
he manipulated the system. he didn't go through the proper legal channels. Any attorney would have told him the parent with physical custody at the court date will more than likely end up with custody. Just saying it was sneaky and underhanded. Tells me all I need to know about him, and really one could look at it as continued manipulation and emotional abuse of Crystal.
If he really had anything on Crystal (abuse/neglect/drugs) he should have turned her in to child protective services and filed for custody - not sweet talk her into a visitation/vacation he wasn't legally entitled to, then refuse to return the kids afterward.