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A firearm registered to notorious cop killer Christopher Dorner was recovered during the arrest of two men suspected in the armed robbery of a $1 million watch ... and the crazy thing is Dorner's been dead for over a decade.

Prosecutors in Los Angeles say Beverly Hills Police officers discovered a handgun registered to Dorner during a Saturday morning search of the suspects' Airbnb.

The firearm is a Glock 21 .45 caliber handgun ... and prosecutors say it was loaded and tucked inside a pillowcase when cops found it during their search. Authorities also released photos allegedly showing one of the suspects holding the gun.

Kehlani claims her ex is abusive -- physically, emotionally and verbally -- high all the time ... and his alleged behavior is having a negative effect on their daughter, Adeya Nomi.

Kehlani got court-ordered protection from Javaughn Young-White, Adeya's father, after claiming he smashed through her locked bedroom door back in June ... according to new legal docs obtained by TMZ.

The singer claims her ex flew into a fit of anger after she questioned him about a notice she received in the mail indicating he'd applied for public assistance.

Skai Jackson has joined the ranks of former child stars who've had run-ins with the law ... the Disney Channel alum was recently arrested ... TMZ has learned.

Law enforcement sources tell TMZ ... the actress, best known for starring in the Disney shows, "Jessie" and "Bunk'd," was arrested last week for domestic violence. We're told deputies were called to Universal CityWalk after security spotted Jackson and her boyfriend getting into it ... and the actress allegedly pushed him, and more than once.

Sources tell us security clocked the altercation and then detained the couple ... until law enforcement arrived.

Salt-N-Pepa's Sandra Denton is putting the heat on Southwest after being kicked off a flight last month ... demanding the airline investigate the issue and preserve any evidence in case this turns into a lawsuit.

In a legal letter obtained by TMZ ... Pepa's lawyers call on Southwest to get the ball rolling on investigating her removal from a July flight ... echoing her previous sentiments that a male agent engaged in "inappropriate and unnecessary action" in handling the situation.

The attorneys are going after Southwest with a number of allegations ... including their belief Sandra was racially profiled and discriminated against during the encounter. They've also called into question how certain policies were enforced.

San Diego Comic-Con got pretty rowdy ... 'cause TMZ obtained a record of police activity from around SD's convention center last month -- and it looks like officers have had their hands full.

According to the report ... one person was arrested for assault with a deadly weapon, 5 got citations, and 12 other incidents triggered ongoing criminal investigations ... and we're told all were related to activity in and around Comic-Con.

There's a pretty wide variety of alleged violations, but here's the gist ... cops say some people were throwing punches, and stealing whatever they could get their hands on.

Rick Ross is facing a new legal challenge ... 'cause a man just sued him, claiming Ross didn't ensure his car show was accessible for disabled people.

A man named Darris Straughter is suing Ross because he says Ross marketed his car show as a dream opportunity to visit his property ... but he says he didn't get the chance ... because a wheelchair-accessible shuttle bus never arrived to get him to the event -- despite claiming he got multiple assurances there would be one.

Darris says he paid for travel, lodging and bought a ticket -- even selling his car to do so -- to Rick Ross' Car & Bike Show ... and claims he reached out to the venue two weeks in advance to give them notice he needed reasonable accommodation for his wheelchair.

It looks like Blueface won't be having that summer celebration his mother hoped for -- a judge just hit the "Thotiana" rapper with a stiff sentence ... 4 years in prison.

Blueface's parents were front and center Friday to support of their son, and heartbroken by the news he's gonna do hard time ... which we confirmed Friday with the court.

His father Johnathan fought back tears when he heard the news ... and Blue's mother Karlissa thanked fans, while assuring them her son had turned over a new leaf behind bars.

Nelly's arrest in a Missouri casino didn't stop him from cashing in his big win from a slot machine ... we're told the rapper walked away with a hefty chunk of change.

The hit-maker's attorney, Scott Rosenblum, tells TMZ ... his client did collect his money from a $50,000 jackpot on a slot machine Wednesday morning at the Hollywood Casino in St. Charles, Missouri. That's the good news to go with Nelly's bad news -- as we reported, the win led to him getting booked for an active warrant.

Sources familiar with the situation tell TMZ ... Nelly initially thought the arrest was a joke or a prank, as he was in the middle of collecting his winnings when a background check revealed the open warrant.

We're told Nelly was first handcuffed to a chair ... with one hand free to collect the remainder of the cash.

Porn star Kendra Sunderland is learning the hard way ... marijuana is still illegal in Texas.

The adult-film actress got busted in Montgomery County, Texas for felony possession of a controlled substance ... in this instance, marijuana ... according to new legal docs obtained by TMZ.

Kendra's arrest went down in broad daylight -- a little past high noon on August 1, and prosecutors say she had less than one gram of THC. Cops aren't saying what led to her bust.

Hollywood actor Gabriel Olds -- known for his roles in "NCIS: Los Angeles" and "The Eyes of Tammy Faye" -- is behind bars, and facing multiple sexual assault charges.

LAPD says officers took Olds into custody Wednesday in response to the L.A. County D.A.'s office hitting him last month with 7 felony sexual assault charges.

Authorities say, in January, a woman came forward claiming the actor sexually assaulted her at her L.A. home ... and then 2 more adult victims came forward with similar stories dating back to 2013.

Nelly's legal team is firing back at police after the rapper was arrested at a Missouri casino ... they say he was "targeted by an overzealous, out of line officer."

Nelly's attorney, Scott Rosenblum, tells TMZ ... Nelly had won a jackpot at the Hollywood Casino in St. Charles Wednesday morning when the arresting officer falsely told him they needed to run a background check before giving Nelly his money.

Rosenblum says Nelly knew this claim to be bogus because he had won bigger jackpots at the same casino, and in those instances, he received his winnings without a background check and no issues whatsoever.

Kanye West's former chief of staff is taking Ye's dentist to task, claiming the doctor has been supplying Ye with nitrous oxide for recreational use ... but the dentist says the chief made up the allegations for attention.

Milo Yiannopoulos -- Ye's chief of staff for two years before departing the company earlier this year -- submitted an affidavit to the California Dental Board claiming Ye's dentist, Thomas P. Connelly, provided Kanye with nitrous oxide for recreational use.

Yiannopoulos claims Connelly provided the gas for cash ... taking in upwards of $50K every month, even when the gas led to distressing signs from Ye -- including addiction to the substance.

OceanGate is facing a lawsuit related to their tragic Titan submersible implosion ... with the family of one victim claiming the company's persistent carelessness, recklessness and negligence led to the fatal implosion.

In documents obtained by TMZ, the family of Paul-Henri Nargeolet -- a French explorer who had traveled to see the Titanic wreck dozens of times before the implosion -- filed the lawsuit ... accusing OceanGate of gross negligence.

The family says OceanGate designed and operated Titan outside the norms of the diving community ... and, ultimately they say Paul's life was lost due to the company's gross negligence.

Two men have been arrested for allegedly plotting a terror attack on Taylor Swift's show in Vienna, Austria ... TMZ has confirmed.

A rep for the Vienna State Police tells TMZ ... two Austrian citizens, including one 19-year-old suspect, were arrested for allegedly planning a terror attack at one of Taylor's shows this weekend. It's not clear what exactly they planned to do.

A bomb squad reportedly found chemical substances after raiding the 19-year-old's home, who was suspected of possessing an explosive device, according to police. Authorities are investigating whether the substances found in the residence could have been used to make a bomb.

Kim Kardashian has a scary connection to Emma Roberts ... they both were victims of the same alleged stalker.

Kim just filed legal docs, obtained by TMZ, asking a judge to grant a restraining order against Melvin Jeffery Conley. According to the docs, Kim got a call from Emma, warning her a man who had broken into Emma's house told her about his desire to make contact with Kim and her kids.

Back in May, Conley allegedly broke into Emma's house and used her landline to dial her cell phone. Emma missed the call but saw someone was calling from her landline ... she figured it was a family member so she called back and Conley answered. He claimed Emma gave him permission to stay at her home ... she did not.

Justin Timberlake's lawyer may be convinced the singer wasn't intoxicated during his DWI arrest ... but new police documents paint a totally different picture of JT's state on June 18.

In the documents ... the pop star verbally refused a Breathalyzer test 3 times after he was pulled over by rookie cop Michael Arkinson for blowing through a stop sign in Sag Harbor.

Per Arkinson's notes, he followed field procedure, as he observed several signs of JT's alleged intoxication ... including the odor of alcohol, glassy eyes, divided attention, and an unsteady foot. Daily Mail was first to report the news.