Conan O’brien

Bill Hader, , Celebrities, Conan O'brien, Entertainment, Fast News, Michele Reiner, Nick Reiner, Other, Rob Reiner, When Harry Met Sally...

Conan O’Brien Stopped 911 Call As Nick Reiner’s Explosive Fight With Dad Terrified Guests At Party

December 21, 2025

Conan O’Brien reportedly intervened to stop guests from calling 911 during a heated argument between Nick Reiner and his parents, filmmaker Rob Reiner and photographer Michele Singer Reiner, at the comedian’s holiday party.

On December 13, Nick attended the Christmas party with his parents, where his behavior grew increasingly alarming and erratic. The volatile confrontation prompted attendees to call the police and even request a psychiatric hold.

However, O’Brien stepped in, saying, “It’s my house, my party, I’m not calling the police.” He talked the guests out of contacting authorities.

Rob and Michele were found lifeless on December 14, and their demise was ruled a homicide. Nick was arrested with two counts of first-degree murder.

Conan O’Brien allegedly stopped guests from calling 911 on Nick Reiner

Image credits: Paul Morigi/Getty Images

Sources told the Daily Mail that Nick’s confrontation with his father became so distressing and scary that partygoers decided to call the police.

“They got in an argument, the father and son [at the party]. It got so bad and loud [that] someone wanted to call the police to report it,” one insider said.

Another source revealed some guests got worried about whether Nick should be placed on a psychiatric hold due to his behavior.

Image credits: Michael Buckner/Getty Images

“When the s–t was hitting the fan, somebody said, ‘We need to call the police.’ The conversation was about getting this kid put into a mental-health hold.”

But Conan O’Brien intervened and told the guests not to call the police, since it was his house and his party. While some guests understood the desire to avoid a public scene, the squabble between Nick and Rob was described as “pretty intense.”

Rob Reiner told guests he was “petrified” of his son Nick and claimed he could hurt him

Image credits: flufffynan

Image credits: MichaelSCollura

Hours before Rob Reiner was found slain at his home, the director known for When Harry Met Sally expressed fear that his son might harm him.

As reported by Bored Panda, an unspecified celebrity shared with The Daily Mail the final words of the director at the party.

“I’m petrified of [Nick]. I can’t believe I’m going to say this, but I’m afraid of my son. I think my own son can hurt me.”

Image credits: Laura Cavanaugh/Getty Images

Rob’s friends also revealed that he and Michele were “scared for Nick” and his deteriorating mental health. The couple brought him to the party as they were reluctant to leave him alone.

Nick was arrested five hours after his parents were found deceased. He is currently serving at the Twin Towers Correctional Facility in Los Angeles.

Nick Reiner’s erratic behavior alarmed several guests, including actor Bill Hader

Image credits: Laura Cavanaugh/Getty Images

Image credits: michelreiner

Nick’s behavior at the Christmas party not only unsettled his parents but also several other guests. Sources revealed to People that Nick was behaving “creepily” at the party.

“Nick was freaking everyone out, acting crazy, kept asking people if they were famous.”

According to NBC News, Wall Street Journal, and TMZ, Nick also had an interaction with actor Bill Hader. One source claimed that he reportedly interrupted a private conversation Hader was having with others.

Image credits: michelreiner

Image credits: lostdogs20

“What’s your name? What’s your last name? Are you famous?” Nick asked.

When Hader told him the discussion was private, Nick froze, stared at him before “storming off.”

The source further stated that Nick stood out at the party enough to alarm the guests.

Nick was diagnosed with schizophrenia weeks before stabbing his parents

Image credits: michelreiner

As reported by Bored Panda, Nick was diagnosed with schizophrenia weeks before he allegedly stabbed his parents in their Brentwood home.

According to TMZ, doctors had recently adjusted his medications to stabilize him, which led him to behave “erratic and dangerous.”

A source told the outlet, “Nick was out of his head.”

Nick also spent time at a Los Angeles rehab facility specializing in mental illness and substance abuse. Sources also described him as a “ticking time b*mb”, who would not sleep for days.

Image credits: MarleneArdoin

“His dr*g use was getting worse and his parents wanted him out.”

Nick had been living at his parents’ guest house and visited the rehab almost 20 times.

Even during his first court appearance on December 17, he appeared stoic and only spoke three words, “Yes, your honor.”

He is expected to plead not guilty by reason of insanity. Nick’s arraignment is scheduled for January 7, 2026.

“Hoping Conan is taking this ok. This whole thing was not his fault whatsoever,” one user sympathized the comedian

Image credits: andrewgootz1

Image credits: tea_spiracy

Image credits: Violetskyye

Image credits: jjetsjetsjets

Image credits: ScholarsLlc

Image credits: ElonTiijone

Image credits: Common2s

Image credits: lucristianx

Image credits: jeffhendricks69

Image credits: diggsandnoogs

Image credits: starandseen

Image credits: MichaelSCollura

Image credits: ADiskestein

Source Link Conan O’Brien Stopped 911 Call As Nick Reiner’s Explosive Fight With Dad Terrified Guests At Party

Bill Hader, Brentwood Mansion, , Celebrities, Celebrity Crime, Conan O'brien, Entertainment, Family Homicide, Fastnews, First-degree Homicide, Hollywood Crime, Hollywood Tragedy, Mental Health, Michele Singer Reiner, News, Nick Reiner, Rob Reiner, Romy Reiner, Substance Abuse

What Rob Reiner’s Son Asked Celebrities At Conan O’Brien’s Party That ‘Freaked Everyone Out’

December 17, 2025

In the final hours before allegedly taking the lives of his parents, Rob Reiner’s son Nick spent behaving in ways that guests at an A-list Hollywood party now describe as unsettling and deeply alarming.

Less than a day before Rob Reiner, 78, and his wife Michele Singer Reiner, 70, were found fatally stabbed inside their Brentwood home, their 32-year-old son attended Conan O’Brien’s Christmas party alongside them.

What he said to celebrities that night, and how he behaved, has since taken on disturbing new weight after he was charged with two counts of first-degree homicide, particularly as details about why he was at the party in the first place have surfaced

He faces the possibility of capital punishment if convicted.

New details have emerged about why Nick Reiner attended Conan O’Brien’s Christmas party with his parents

Image credits: Getty/Michael Buckner

According to the Wall Street Journal, Nick approached actor Bill Hader during the gathering and asked him a series of blunt questions.

“What’s your name? What’s your last name? Are you famous?” Nick asked, the outlet reported.

Rob Reiner had personally introduced his son to Hader earlier in the evening. Witnesses said the exchange quickly became uncomfortable.

Image credits: Getty/Michael Loccisano

Multiple guests said Nick repeatedly asked the same questions to other attendees throughout the night, fixating on status and fame. Sources told People Magazine that he was “freaking everyone out.”

One witness told NBC News that Nick interrupted Hader while the actor was in, what he described as, a private conversation. When Hader told him so, Nick reportedly stood in place, stared, and then stormed off, leaving nearby guests unnerved.

Image credits: Getty/Jerod Harris

Another source told TMZ that Nick stood out sharply at the formal gathering because he was wearing a hoodie and looked disheveled – a stark contrast to the dress code of the star-studded event.

Page Six reported that Nick kept pestering partygoers with the same line of questioning until he was eventually asked to leave O’Brien’s home.

The couple wanted to keep an eye on their son as his behavior had become increasingly erratic

Image credits: Getty/Michael Buckner

As the timeline of the tragedy became clearer, many started asking themselves why Nick was at the party in the first place.

Several outlets, including Rolling Stone, People, TMZ, and the Daily Mail, all converge on the same point:

Rob Reiner and Michele Singer Reiner specifically asked if they could bring Nick with them to the party because they were concerned about his mental state.

Insiders said they wanted to “keep an eye on him.”

Image credits: Grannytologist

Image credits: Instagram/michelereiner

As the evening progressed, witnesses say tensions between Nick and his parents escalated.

As Bored Panda reported, Rob and Michele Reiner became involved in a “very loud argument” with their son during the party. New details confirm the confrontation centered on Nick’s refusal to return to rehab.

Image credits: BeppiButler1

Image credits: Getty/Laura Cavanaugh

An old family friend told reporters that although Nick was supposedly sober at the time, it appeared “not so much off them” that night.

The argument ended with the Reiners leaving the party early.

Less than 24 hours later, the couple would be found lifeless.

Nick had reportedly resumed his substance use in the months leading up to the tragedy

Image credits: Instagram/michelereiner

On Sunday afternoon, Rob and Michele Reiner were discovered fatally wounded inside their $13.5 million Brentwood mansion by their daughter, Romy Reiner, 28.

She immediately told investigators that her brother should be considered a suspect, describing him as “dangerous.”

Nick Reiner was arrested later that night at a Los Angeles subway station roughly 15 miles from his parents’ home. As Bored Panda reported Tuesday (December 16), he is set to be charged with homicide.

Image credits: Instagram/michelereiner

Nick is currently being held without bail at the Twin Towers Correctional Facility in Los Angeles, placed on constant watch.

Following his arrest, further details emerged about Nick’s long-standing struggles.

Image credits: BUILD Series

Sources told the Daily Mail that Nick had been living in his parents’ guesthouse for the past five years, where his behavior had grown increasingly volatile. One source described him as a “ticking time b*mb.”

“He would do m*th and not sleep for days, and then have outbursts, breaking things, punching walls,” the source said. “His dr*g use was getting worse and his parents wanted him out.”

Image credits: LAPD Gang and Narcotics

Nick himself spoke publicly about his struggles in a 2016 interview with People Magazine, admitting he had entered rehab around age 15 and returned 17 more times over the next four years. He also described periods of homelessness across multiple states.

“I was homeless in Maine. I was homeless in New Jersey. I was homeless in Texas,” he said. “I spent nights on the street. I spent weeks on the street. It was not fun.”

Friends and family insiders say warning signs had been present for years

Image credits: Instagram/michelereiner

Celebrity yoga instructor Alanna Zabel, who worked with the Reiner family for nearly a decade, said Nick displayed severe emotional outbursts from a young age.

“Nicky would barge in like the world was on fire, screaming, into our yoga sessions,” she recalled. “It was disruptive. I have never seen a child like it.”

Zabel said she held private sessions with Nick for a year in an attempt to help him regulate his emotions and confirmed that the family sought professional help early on.

“The fact that they were seeing a family therapist shows how much they cared,” she said. “They were trying to figure it out.”