Douglas Shaffer exclusively told Page Six he has “mixed emotions” after the couple’s troubled son was arrested and charged with brutally stabbing his parents to death at their Brentwood, Los Angeles, home on Sunday.

Disturbing footage and insider stories resurface as Hollywood reexamines Nick Reiner’s past after a shocking family tragedy.

The world is still reeling from the shock death of Rob Reiner and his wife at the hands of their drug addicted son.

Bill Hader and other guests worried the erratic attendee, 6-foot-3 and 230 pounds, had wandered in off the street.