TMZ Investigates

Nick Reiner's mental breakdown in the weeks leading up to the murders of his parents, Rob and Michele Reiner, is directly tied to a head-scratching decision by doctors to change the meds he was taking for his mental illness ... sources with direct knowledge tell TMZ.

TMZ has a new documentary -- "TMZ Investigates: The Reiner Murders: What Really Happened" -- airing Friday at 8 PM ET on FOX and dropping on HULU Saturday. We explain in the doc, Nick was diagnosed around 2020 with schizoaffective disorder ... a condition that manifests itself with schizophrenia symptoms -- including delusions, hallucinations, and disorganized thinking -- and mood disorder symptoms, including mania and severe depression.

Our sources say a month before the murders, Nick was stable on his meds for schizoaffective disorder ... we're told the meds were working just fine. For some reason, his doctors decided to change the meds. Our sources would not say why doctors made that decision ... only that we would be shocked to learn the reason, which we're told makes no sense.

Dr. Drew says doctors prescribing medication to Nick Reiner for his mental illness royally screwed up by changing his meds in the weeks leading up to his parents' murders ... but hindsight is 20/20, and there are all sorts of reasons why the meds get changed.

The good doc joined us on "TMZ Live" Thursday ... and we asked him about something we uncovered in our new documentary, "TMZ Investigates: The Reiner Murders: What Really Happened" ... Nick was stable on his meds for schizoaffective disorder a month before the killings, but then doctors decided to change things up.

Dr. Drew says meds get changed all the time when patients stress about how they're feeling or how their side effects are affecting them ... but that doesn't always make it the right move.

The murders of Rob Reiner and Michele Singer Reiner rocked Hollywood ... and, while it seems clear their son Nick killed them, we've learned his conviction is anything but assured.

Our new documentary on the Reiner murders dives into the tragic killings ... including new information tying the murders to Nick's medication.

Stalkers have become a huge problem for celebrities ... and huge stars like Taylor Swift are scared of what some of these folks might do ... because sometimes things turn deadly.

In "TMZ Investigates: Obsessed & Dangerous: Hollywood's Stalker Crisis," we explore the growing danger stalkers pose to celebs ... and we expose how laws and the police do little to protect stars from this sometimes deadly epidemic.

Taylor's dealt with stalkers for years, and she keeps medical supplies in her home now because she's scared one of them might break in and hurt her.

Britney Spears' divorce from her third husband Sam Asghari left her completely alone ... and we explore the challenges she faced with her family estrangement in the aftermath of her conservatorship in a special documentary that's now on YouTube.

When Britney and Sam divorced in 2023, we took an in-depth look at her life with our TV special, "TMZ Investigates: Britney Spears: Divorce & Despair," and it was super enlightening.

Britney's divorce left her with only two people in her life ... her manager and her lawyer. No friends, and basically no family.

Rex Heuermann is accused of hunting sex workers in a quiet Long Island beach town ... but could sloppy police work have allowed him to keep killing?

Our deep dive from 2023 is now officially on YouTube ... and it peels back the layers of the investigation, exposing critical mistakes and overlooked clues that may have cost more lives.

From the shocking discovery of multiple victims to the arrest of a seemingly ordinary man, we unpack how the system failed the victims and their families.

It’s a story of secrets, missed red flags, and a trail of tragedy that rocked a community to its core.

Our deep dive into the first-ever declassified Pentagon report detailing 144 accounts of UFO sightings is officially up on YouTube ... and there's a lot to unpack.

"TMZ Investigates: UFOs: The Pentagon Proof" analyzes our government's official response to UFO conversations from an investigative standpoint ... we interview key players and showcase footage of UFOs recorded from all over the world.

We talked to military officials and pilots who say they suffered severe retribution for daring to implore the Pentagon to take UFOs seriously ... including former Pentagon Counterintelligence official Lue Elizondo.

Luigi Mangione, the charged killer in the Brian Thompson murder case, enjoyed a privileged life ... but folks who know him say he also had a dark side.

We go inside Luigi's mind in a TMZ documentary that is now officially up on YouTube ... and if you haven't seen it yet, now's your chance to catch up on some shocking details.

Sources close to Luigi told us how Mangione became radicalized before quietly plotting to kill a healthcare CEO ... allegedly turning into an assassin despite a charismatic personality.

Michael Jackson died because Dr. Conrad Murray infused him with a fatal dose of propofol, at least that's the official story ... but it's not the REAL story ... and, our documentary covering it all is now available on YouTube.

A months-long TMZ investigation paints a very different picture than the official narrative ... a picture of numerous doctors who are largely responsible for the King of Pop's death.

Our documentary, "TMZ Investigates: Who REALLY Killed Michael Jackson," hones in on one doctor in particular ... the late Arnold Klein, a famous dermatologist with a practice in Beverly Hills.

On September 11, 2001, United Flight 23 was grounded when the World Trade Center was hit, but it might have been another plane hijackers planned to weaponize in the terrorist attack -- and, our documentary covering it all is now available on YouTube.

"TMZ Investigates 9/11: The Fifth Plane" -- the result of a 6-month investigation -- takes viewers through the litany of suspicious activities that prompted the FBI to look into whether the plane was also part of the horrific plot that fateful day.

We interviewed 3 flight attendants, the pilot, the United dispatcher, and a member of the 9/11 Commission ... who reveal a story about suspicious passengers who were a bit too eager to get into the air, and uniformed individuals running through the cabin after the plane was evacuated.

Justin Bieber just can't catch a break these days ... because he got a parking ticket Tuesday in L.A., and it was all caught on video -- and so was his crotch grab!

TMZ obtained footage of the troubled singer walking out of a commercial bank in Bev Hills — only to have a surprise waiting for him on the windshield of his Mercedes G-Wagon parked out front ... an annoying parking ticket.

Our sources say earlier, Bieber had difficulties trying to park the sizable vehicle inside a garage because the G-Wagon exceeded the height limit.

Justin Bieber is shrinking his circle and some people who have been cut out say he's being isolated from longtime friends because he's in a cult and his church pastor is wielding a ton of influence over his life ... but the pastor says that's bogus.

TMZ has a new documentary, "TMZ Investigates: What Happened to Justin Bieber," now available on Hulu, and part of our investigation digs into Justin's involvement in his church, Churchome, in Beverly Hills.

Justin is no longer friends with Ryan Good, the best man at Bieber's wedding and the creative director at JB's fashion brand Drew House, and our sources say it has to do with Ryan leaving Churchome because he thought it was a cult.

Justin Bieber made somewhere between $500 million and $1 billion as the world's biggest pop star, but he blew it all ... and ended up being in such dire financial shape he had to sell his music catalog for $200 million.

TMZ has a new documentary, "TMZ Investigates: What Happened to Justin Bieber," now available on Hulu, and part of our investigation digs into Justin's money problems.

People on Justin's side told us he was on the verge of "financial collapse" back in 2022 ... so much so that he felt he had to sell the rights to his music that December.

Justin Bieber's unraveling has fans sounding the alarm -- and we're peeling back the layers on his troubling spiral in "TMZ Investigates: What Happened to Justin Bieber?" now streaming on Hulu.

TMZ’s own Harvey Levin and Charles Latibeaudiere -- plus our team of producers Charlie Neff, Don Nash, Katie Hayes and Eric Colley -- dig into the jaw-dropping allegations: Bieber’s rumored drug use, his rocky marriage to Hailey, a financial collapse, and his deep ties to a controversial church.

"TMZ Investigates: What Happened to Justin Bieber?" also unpacks a behind-the-scenes power struggle fueled by money, loyalty, religion, and betrayal -- all at the heart of Justin’s fractured relationship with the man who launched his career ... former manager Scooter Braun.

After months of digging and speaking with insiders directly involved in his life, TMZ Investigates goes all in to uncover what’s really going on with Bieber -- and it’s more intense than anyone imagined ...

Diddy's trial begins in just a few weeks ... and, it seems some of his infamous "freak off" tapes may actually be shown to the jury -- if a new proposed questionnaire is any indication.

The rap mogul's lawyers submitted this questionnaire late Friday ... and, according to the Associated Press, it contains questions about potential jurors' willingness to watch sexually explicit videos or videos that depict physical assault.

Diddy's team also reportedly wants to know about jurors' views on people with multiple sexual partners.