Who is Nick Reiner? Rob Reiner’s son arrested for allegedly slitting parents’ throats

Legendary Hollywood director Rob Reiner and his wife of 36 years, Michelle, were found stabbed to death inside their Brentwood home. Law enforcement sources confirmed Monday that the couple’s son, Nick — who has a problematic history that involves drug addiction and homelessness — has been arrested and is in the custody of the Los Angeles County Sheriff’s Department.

So who is Nick Reiner? Here’s what we know so far.