Nick Reiner was a “ticking time bomb” whose drug addiction had spiraled dangerously out of control after his parents warned him he could soon be forced out of their home, the Daily Mail can exclusively reveal.
The deeply troubled 32-year-old — arrested Sunday night in connection with the brutal stabbing deaths of his legendary filmmaker father Rob Reiner, 78, and his mother Michele Singer Reiner, 70 — had been living in his parents’ Los Angeles guesthouse for the past five years. According to insiders, his behavior during that time became increasingly erratic, destructive, and terrifying.
“Nick had been living in their guesthouse — the same one he destroyed more than once,” a source close to the family told the Daily Mail. “It had been a revolving door his entire adult life.”
The source described long stretches of meth use, days without sleep, violent outbursts, and explosive rages that left walls punched through and property destroyed.
“He would do meth and not sleep for days, then completely lose control,” the insider said. “Breaking things. Punching walls. He was a ticking time bomb. His drug use was getting worse, and his parents wanted him out.”
According to the source, Nick often laughed off the destruction he caused during drug-fueled episodes — and even bragged about it.
“He would joke about how he could get away with anything,” the source claimed. “He took money from his parents for drugs and prostitutes. He laughed about wrecking the guesthouse more than once. He was disturbingly nonchalant.”
Nick reportedly insisted he wasn’t using heroin anymore and claimed he could “handle” marijuana — but the situation escalated into meth use, sleepless binges, and days without eating.
“He had no control,” the source said. “He even broke his hand punching a bathroom wall and refused help.”
Tensions inside the family grew increasingly volatile. Nick’s parents repeatedly gave him an ultimatum: take medication, stop using drugs, or move out.
“When he started threatening his sister after she confronted him, that’s when all hell broke loose,” the source said. “His parents threatened to call authorities multiple times — but in the end, they didn’t.”
Years earlier, Nick had chillingly described one of these explosive episodes himself during a 2018 appearance on the Dopey podcast, which focuses on addiction and recovery.
Asked directly about destroying the guesthouse while on meth, Nick admitted: “I got totally spun out on uppers. I think it was coke and something else. I was up for days on end.”
He went on to describe wrecking nearly everything inside the structure.
“I started with the TV, then the lamp. Everything in the guesthouse got destroyed,” he said flatly.
When the host suggested the violence might have been a release of pent-up emotion, Nick dismissed the idea entirely.
“No. You’re crazy. No logic,” he replied.
That resurfaced interview has taken on haunting significance following Sunday’s killings.
Nick was arrested around 9:15 p.m. Sunday after his sister Romy reportedly discovered their parents’ bodies inside their $13.5 million Brentwood mansion. Both victims had suffered multiple stab wounds.
Earlier that afternoon, a masseuse arrived for a scheduled appointment but left after no one answered the door. Concerned, she contacted Romy, who lives across the street. When Romy entered the home, she found the horrifying scene.
Nick later drew heavily on his struggles with addiction to co-write the semi-autobiographical 2016 film Being Charlie with rehab friend Matt Elisofon. While Elisofon remained sober, sources say Nick continued cycling in and out of treatment as their friendship fell apart.
Nick has spoken publicly about entering rehab for the first time around age 15, followed by 17 more stints over the next four years. He also endured periods of homelessness across multiple states.
“I was homeless in Maine. I was homeless in New Jersey. I was homeless in Texas,” he told People magazine. “I spent nights on the street. It was not fun.”
Friends and family insiders say the warning signs had been there for years — even before drugs entered the picture.
Celebrity yoga instructor Alanna Zabel, who worked with the Reiner family for nearly a decade, described Nick as an intensely volatile child with extreme emotional outbursts.
“He would burst into rooms screaming like the world was on fire,” she recalled. “I had never seen a child like it.”
Zabel said the family hired therapists and sought help early on, emphasizing that Rob and Michele were deeply involved and loving parents.
“The fact they sought family therapy shows how much they cared,” she said. “They were trying to figure it out.”
Now, that long, painful history has culminated in a tragedy that has shocked Hollywood — and left an iconic filmmaker and his wife dead, allegedly at the hands of their own son.
