-- and yes, I know, I'm the very definition of late to the party here --

but this sentence: "his father abandoned the family when Chris and his siblings were still young, though he doesn't appear to have cut all contact with them" -- that's not entirely accurate.

Chris' mother and father divorced shortly after he was born (in "Driven", Bev says that they separated when Chris was six months old) and Bev went on to have other children--but none of them were with Chris' father. Chris' three or four sisters are all his half-siblings, and the oldest is a few years younger than Chris.