Sod....He’s got the kids as far as I know. Why??
If I was the grandfather I get three or four of my biggest, toughest friends, kidnap the moron and taken him to an undisclosed location where I can assure you he would confess willingly. Following the confession, he’d never be seen again. Forget the police. The guy in Chicago was cop, killed three of his four wives and is still walking around free.