Police Say Hollywood Heir Snapped.

The argument at Conan O’Brien’s Christmas party was only the beginning.

Hours later, hotel staff walked into Nick Reiner’s room and froze.

The shower was smeared red. Sheets were nailed over the window.

And the son of beloved filmmaker Rob Reiner was suddenly the only name on everyone’s lips.

What they told detectives nex… Continues…

What unfolded between a father begging his son to accept

help and a son spiraling back into addiction is now the focus of a murder investigation that has stunned Hollywood.

Neighbors say Rob and Michele lived in quiet fear of Nick’s relapses,

forever hoping the next rehab would finally save him.

Instead, police say, the family’s last

Christmas together ended in bloodshed and sirens.

Detectives are now piecing together Nick’s movements from the party to the Santa Monica hotel,

where staff discovered the blood-filled shower that triggered the 911 call.

Forensic teams are tracing every stain,

every camera frame, every credit-card swipe to understand what truly happened after that “very loud argument.”

Behind the headlines are two lives brutally cut short, a son in handcuffs,

and a community left wondering whether this tragedy was inevitable—or if someone, somewhere, might have stopped it.