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5:05 PM PT -- Sources close to the investigation tell TMZ the reason the case went nowhere is because Adrian did NOT strike the boy in the forehead -- but instead the child accidentally hit his head on a carseat while Adrian was punishing him.

We're also told the form of discipline was "not impermissible." Under Texas law parents are allowed to administer reasonable punishment.

Peterson's attorney tells us an adult witness backed him up, saying Adrian "did nothing inappropriate with his son."

Adrian Peterson is under investigation for a SECOND child abuse case involving one of his other children.

This new investigation involves an incident that allegedly went down in June 2013 ... and the probe was launched after the then 4-year-old boy went home to his mother with a scar on his forehead.

The station says Adrian sent the mother a text message saying the child hit his head on a carseat -- but when the mother questioned him further ... Peterson eventually admitted hitting the child.

The mother reported the incident to Child Protective Services, but no charges were ever filed against Peterson.

Earlier today ... Peterson issued a public apology for the other case -- for which he's been indicted -- saying he was sorry for hurting the child during a visit in May.

George Zimmerman allegedly threatened to kill a man in Florida earlier this week during a road rage incident ... and cops pulled over Zimmerman to grill him about it.

According to the Lake Mary PD, a man named Matthew Apperson called 911 on September 9 and told the operator Zimmerman had pulled up next to him and began yelling, "Why are you pointing your finger at me? I'll f***ing kill you. Do you know who I am?"

Apperson says he drove away to a store where Zimmerman followed him to continue the verbal barrage. Apperson called 911 from inside the store, but according to cops ... Zimmerman was gone when they arrived.

Apperson claims 2 days later, he saw Zimmerman parked outside his work, and called police again. Cops responded and pulled Zimmerman over near the office. After questioning him, police decided not to press charges -- mainly because there was no independent witness.

For what it's worth ... Apperson is white. Also, he was carrying a gun at the time of the alleged run-in, but he has a permit for it.

The doctor who performed the endoscopy on Joan Rivers has been fired by the clinic's board.

Sources at Yorkville Endoscopy tell us Dr. Lawrence Cohen stepped down after the board asked him to do so -- however the board isn't directly blaming him for Joan's death.

A rep for the clinic confirmed he was ousted from his position as medical director.

According to our sources ... the board's issue with Cohen is that he allowed Joan's ENT doc to step in and perform an unauthorized procedure. Reportedly, that procedure was a biopsy ... and Joan went into respiratory and cardiac arrest while it was being done.

Paris Hilton finally said screw finding Mr. Right, and settled for Mr. Amazing -- that's his name -- but she had to drop $13,000 to get him.

Paris' new guy is the world's smallest Pomeranian -- according to "Betty's Teacup Yorkies" ... the place where Paris bought him. We're told he weighs 11.6 ounces and stands (kinda) 2.5 inches tall.

As for that price tag? Betty says 5-month-old Mr. Amazing hails from a super-fancy breeder in Calgary. Whatevs. He'll be getting on a plane to L.A. soon ... with his nanny, naturally.

Life in Paris' purse awaits.

12:45 PM PT -- A rep for the VIP Room tells TMZ that Chris Brown was "completely oblivious" to the incident and it occurred roughly 50 feet away from Brown and his group. The rep says the entire ordeal was completely unrelated to Brown.

A bottle-throwing brawl erupted at a club where Chris Brown was performing early Thursday morning, and police want to know if he was involved ... TMZ has learned.

According to our sources, it all went down at the VIP Room in the Meatpacking District where Chris was performing for a New York Fashion Week after-party.

Police arrived at the club at around 3:20 AM, after reports of a bottle-throwing melee, but no arrests were made. We're told one victim suffered an eye injury as a result of the bottle-tossing.

Law enforcement sources tell us they are not sure if Chris was directly involved ... but a witness tells us he was in the club, in a V.I.P. section, when the brawl broke out.

Brown tweeted about the fight saying, "There was no brawl involving me or anyone from my camp last night at VIP room. The devil is in full effect at all times. God is the way."

Back in June 2012, Brown was directly involved in a similar brawl with Drake and his crew at W.i.P. Nightclub in NYC.

Kanye West was rushed to the hospital with a throbbing headache while on tour down under ... but made a quick turnaround and was able to perform the same night.

Yeezus and his entourage rushed to the emergency room Wednesday in Melbourne after playing basketball.

Sources tell us Kanye had a pretty intense migraine. He was released later that afternoon after doctors checked him out and determined it wasn't serious.

The Australian media is claiming Kanye suffered seizure like symptoms ... but we're told it's not true.

12:50 PM PT -- According to local police, O'Haire committed suicide. He was found in his bedroom beside his bed, with a red rope tied around his neck and connected to the bedpost. His body was discovered by his father, who then called 911.

Former WCW and WWE wrestler Sean O'Haire was found dead Tuesday at his home in South Carolina ... TMZ has learned.

The coroner in Spartanburg, SC tells TMZ a cause of death is unknown at this time, but no foul play is suspected. They are awaiting toxicology reports that might shed light on things.

O'Haire (whose real name was just Sean Haire) made his debut with the WCW in 2000 and along with partner Chuck Palumbo, was the final WCW tag team champions when the organization folded.

Once in the WWE, he was Rowdy Roddy Piper's protege, but when Piper left in 2003 ... O'Haire fizzled out and eventually left the WWE in 2004.

He eventually transitioned into kickboxing and MMA before becoming a hair stylist.

Taylor Swift believes Katy Perry is a thief ... and we've learned that's the basis of their feud.

The girl-on-girl war ignited when 3 of Taylor's dancers jumped ship and joined Katy's tour. Taylor felt betrayed because she became very close to the dancers and considered them family.

But here's the thing. The 3 dancers had actually worked with Katy first, but when Katy's tour ended several years ago they needed work. So they signed up as dancers during Taylor's tour.

We're told the dancers told Taylor up front ... they did not want to sign for the full tour -- they wanted a 30-day out, and we're told it's because they were just waiting for Katy to go back on tour.

When Katy hit the stage again, they gave their 30-day notice, but Taylor got so pissed off she fired them on the spot.

All of this went down a year ago but we're told Taylor held a grudge, which boiled over when she wrote a song -- "Bad Blood" -- alluding to Katy screwing her over.

It's turned into a full on war, with Taylor not-so-coyly talking about the alleged betrayal -- and Katy responding on Twitter by calling Swift ... Regina George in sheep's clothing.

Momma Dee's a true multi-tasker ... busting out both a song and her tooth at the same time.

The "Love & Hip Hop: Atlanta" star has a "flipper tooth" -- a removable fake tooth -- which made a hasty exit smack in the middle of her single release party at Club Sutra in ATL.

Momma didn't let a floppy incisor get in the way of her big night. She struggles for a sec, but eventually pulls it together.

Several Baltimore Ravens players are saying ... they will not treat Ray Rice like an outcast -- and have vowed to support him as a friend ... team sources tell TMZ Sports.

Our sources tell us ... multiple players have already reached out to Ray to let him know they won't turn their backs on him in the wake of new elevator video showing the running back attacking his then-fiancee.

We're told Ray has apologized to some of his teammates for his actions and has said that he is actively seeking counseling and going to church in an effort to move on with his life.

The FBI descended on the Four Seasons Hotel in Bev Hills ... on the hunt for a woman they believed was making death threats and harassing phone calls to Kris Jenner and her family.

FBI sources confirm ... agents obtained a search warrant targeting a suspect -- a black female who drives a 2004 silver Toyota Corolla -- the woman they believe is behind the threats.

The agents seized a cell phone, laptop, iPad and iPod Touch when they rooted through the woman's hotel room Friday ... but she was not arrested.

TMZ broke several stories in the past ... about a woman who was incessantly calling Kris Jenner and making various threats. She sometimes called as many as 300 times a day, threatening to release a sex tape starring Kris and Bruce Jenner. She wanted money in exchange for the phantom tape.

Sarah Jessica Parker and Matthew Broderick are trying to unload their massive Greenwich Village townhouse and they are enlisting the services of a Bravo reality star to help them score a massive pay day.

Parker and Broderick are listing the multi-million dollar home with Fredrik Eklund, who stars on the Bravo series, "Million Dollar Listing New York."

The townhouse is 6,800 square feet with 7 fireplaces, and is so massive ... it has a "guest floor" with three bedrooms!

The couple bought the place in 2011 for $18.995 million and is asking $22 million for it now.

Siva Kaneswaran fought off a man he says was beating a woman on the street in NYC -- and ended up catching a shiner in the process.

"The Wanted" singer was walking in Chelsea last month with his rep ... when they saw the man attacking his girlfriend. The rep tells us Siva ran over and tried to break it up, telling the man to chill out -- but the attacker yelled back, "This isn't about you."

The rep says that's when it got physical -- while Siva was trying to hold the guy back, he got clocked in the face. The attacker eventually took off, but the scuffle gave the GF enough time to run away.

We're told Siva initially wanted to keep the fight -- and his shiner -- under wraps, but is now hoping the woman will get in touch with him so he can be sure she's okay.

Siva's got a bad record with good deeds. A homeless man attacked him outside a Denver movie theater earlier this year ... when he tried to give him money.

Joan Rivers -- who made the world laugh for over 50 years with her jokes, put-downs and one-liners -- has died in NYC ... a week after her heart suddenly stopped beating during vocal cord surgery.

She was 81.

Joan's daughter Melissa Rivers took her mom off life support so she could pass comfortably in a private room.

The death has been reported to the NYC Medical Examiner's Office -- and officials tell TMZ the office will open an investigation to determine cause of death.

Melissa just issued a statement saying, "It is with great sadness that I announce the death of my mother, Joan Rivers."

"She passed peacefully at 1:17 PM surrounded by family and close friends. My son and I would like to thank the doctors, nurses and staff of Mount Sinai hospital for the amazing care they provided for my mother."

"Cooper and I have found ourselves humbled by the outpouring of love, support and prayers we have received from around the world. They have been heard and appreciated."

"My mother's greatest joy in life was to make people laugh. Although that is difficult to do right now, I know her final wish would be that we return to laughing soon."

Rivers is widely credited for opening doors for countless female comediennes. She broke through in a big way during her appearances on "The Tonight Show" with Johnny Carson.

She also famously enraged Carson by accepting a gig to host a competing late night show on FOX. Carson never spoke to her again.

Rivers was born in 1933 -- she worked as a writer and fashion consultant before entering show biz as a stand-up comic in the early '60s. She was famously self-deprecating ... often self-critical of her looks and her marriage to Edgar Rosenberg ... who committed suicide in 1987.

Joan's late '80s FOX show tanked, which somewhat derailed her career. It was resurrected in a big way in 2010 in the wake of the documentary "Joan Rivers: A Piece of Work."

She was universally adored by fellow comedians, including fellow legend Don Rickles, who once said about her ... "Joan is not only a very intelligent lady, but extremely masterful at comedy timing. Sharing the stage with her has always been a joy for me."

Barbara Walters was asked about Joan last year, saying ... "I wouldn't dare to try to be funny about Joan Rivers because she is the smartest, best-informed and funniest woman I know."

Joan and her daughter Melissa began working as a team hosting various red carpet and fashion shows on E! and other networks, including "Fashion Police."

Joan's credits could fill a book ... including appearances in "The Muppets Take Manhattan," "The Carol Burnett Show," "Hollywood Squares," "Pee Wee's Playhouse," "Celebrity Apprentice," "Saturday Night Live" ... and on and on.

"Versace" rappers Migos got into an all-out battle royale at one of their shows ... where all 3 members of the group ended up going loco on their fans.

The melee started Sunday night at LimeLight nightclub in Nashville -- when according to sources ... one member of the group had a gold chain snatched from his neck while on stage, and immediately went after it in the crowd.

It's pretty wild fight video -- bodies pile up on the floor as the whole thing plays out.

Police were called, but LimeLight security was eventually able to contain things and no arrests were made.

Of course, this isn't the first time the Migos have been involved in an attack on tour ... having nearly escaped death following a drive-by shooting in Miami earlier this year.

Migos definitely love a good "Fight Night."

Future and Ciara didn't stay apart for long ... and it's all because Ciara feels strongly about her son needing his father around 24/7.

Sources close to Future tell TMZ ... he and Ciara are living together again -- and trying to make things work between them -- so Future can help take care of their 4-month-old son, Future Zahir.

Ciara must be willing to overlook the past ... since she was the one who claimed Future cheated on her while he was on tour -- and then broke off their engagement last month.

We're told Ciara wasn't interested in a shared parenting situation ... saying she believes Future's a good father and that it's best for their son if his dad's there.

Pretty selfless of her, if she really believes he cheated.