Scientology's David Miscavige
Target of Death Threats

Someone is out to kill Scientology honcho David Miscavige ... or so the guy vows, and it's triggered a big police investigation. A man repeatedly called the main number for Scientology in Hollywood in July, making very direct threats:     "Tell David that we are going to kill him."     "We are going to assassinate Mr. Miscavige and every single one of you."     "You tell your leader, who is an a**hole and a motherf*****, he is going to be shot pretty soon." We're told the operator kept the man on the phone during the last call for 2 hours and 55 minutes and got identifying information, including his Skype address.   Scientology forwarded the info to LAPD's Major Crimes Unit, which launched an investigation and executed a search warrant last month. The person the LAPD closed in on is a Jewish businessman. It's unclear if any arrests have been made.

Rachel Uchitel
Major Brain Surgery Scheduled

Rachel Uchitel will undergo surgery so major, her entire brain will be lifted off the cavity. We're told Rachel has been suffering from back pain for years, but all treatment failed. She recently went to a surgeon who told her she had a condition called Chiari, a birth defect that causes brain tissue to settle into the spinal canal. Tiger Woods' former GF will go in for surgery in 2 weeks, where doctors will cut a hole in the back of her head and lift the brain off the spinal canal. Rachel's terrified but doctors say they're fairly confident ... 50% become symptom-free, 10-30% improve significantly and the rest don't. So so Vegas odds, but doctors say she'll be ok. 

Stars and Scars
You be the Judge

Forget Biden throwing his hat in the ring ... how 'bout Kanye? And maybe we've gone overboard here at TMZ with the Kardashians. So we gotta ask ...

Rapper Travis Scott
Lunges at Fan ... I'm NOT A$AP Rocky!!!

Travis Scott lost it Thursday night when several fans mistook him for A$AP Rocky. True enough they have similar hairstyles, but it's clearly a sore spot for the rapper, who was going into Up & Down nightclub in NYC for his album release party. It was a big deal for Travis ... Bieber and Kendall Jenner were inside to cheer him on, but he had to shake off a case of the angries before entering. As for Shakespeare's question, "What's in a name?"  Now we can answer ... everything.

TMZ's Bangin' Backside

We're ending the summer on a real bummer ... and you get to enjoy it all while sitting there on your butt! Check out all the great glutes that poured into the TMZ newsroom for our Bangin' Backside Photo Contest and be sure to check back on Monday to vote for which pic should score the $250 prize! **CLICK HERE for contest rules and regulations!**

'Love and Hip Hop' Star
Charged in Uber Driver Beat down

'Love and Hip Hop' star Teairra Mari just learned a tough lesson -- you can get charged for not getting a phone charge. You might remember ... Mari allegedly went nuts on an Uber driver in July after he refused to let her charge her cellphone. The driver claims Mari began to punch him and stole his charger -- forcing him to pull over.  Prosecutors bought the driver's story and on Friday Mari was charged with battery and theft -- both misdemeanors. She was also hit with a vandalism charge but it's not clear where that came from.  Mari faces possible jail time, where at least she won't have to worry about her phone's battery life. 

Tim Tebow
STALLONE HAS MY BACK 'He Should Be 1st String!'

Tim Tebow has some MAJOR support from a big huge Philadelphia mega-icon -- Sylvester Stallone -- who tells TMZ Sports Tim shouldn't just make the Eagles roster ... HE SHOULD START!!!! 

Jim Parsons
Friend Praised During Emmy Speech ... Busted for Improper Relationship with Student

The man "Big Bang Theory" star Jim Parsons singled out for praise during his Emmy acceptance speech in 2010 has been arrested for having an improper relationship with his high school student -- a felony.   42-year-old Greg Stanley -- who was Parsons' roommate in college and longtime friend -- was arrested in College Station, Texas after a 17-year-old complained Stanley lured him to his home last month, served him alcohol and sexually assaulted him. Stanley was a theater arts teacher at College Station High School, where the 17-year-old attended. According to cops, a conversation after the incident between Stanley and the 17-year-old was recorded, in which Stanley reportedly said he would give the boy a prominent position within a student organization "if we could just move on." As for why Stanley wasn't charged with child molestation ... the age of consent in Texas is 17. Stanley has been placed on administrative leave. A rep for Parsons tells TMZ, "They were friends but have not been in contact for several years."

Rosie O'Donnell's Daughter
Judge Clears Way for Reunion ... With Child Endangerment Defendant

Rosie O'Donnell's daughter Chelsea can reunite with the guy who was arrested for sending her obscene messages. A judge had issued a no contact order, prohibiting 25-year-old Steven Sheerer from having any contact with the then 17-year old, who ran off to be with him. But here's the twist. Chelsea just turned 18, so she's an adult ... free to make her own decisions. That does not mean by any stretch the charges against Sheerer will go away. He claims he believed she was of consenting age because she was on his 18 and older Tinder feed. 

Caitlyn Jenner
Luke Warm on Gay Marriage

Caitlyn Jenner stunned a lot of people during a recent taping of 'Ellen,' saying she was opposed to gay marriage for a long time but now she's just ok with it. Ellen was on her game, challenging Caitlyn who said she was a traditionalist for a long time but eventually decided she had no business standing in the way of someone's happiness. She sounded very tentative, and Ellen pressed. The best Caitlyn could muster was, "I'm ok with it." Interesting.

Heir to Frito-Lay Potato Chips
Found Dead

Carter Lay, an heir to the Frito-Lay potato chip empire, was found dead in his L.A. home Thursday. Cops tell TMZ they got a call around noon for an unconscious male.  When they arrived they found Carter in his bedroom, unresponsive. CPR failed and he was pronounced dead on the  scene. Carter was the grandson of Herman Lay -- the founder of Frito-Lay. The company is valued at $13.1 billion, according to Forbes. An autopsy is underway.  We're told there is nothing suspicious surrounding his death. A friend of Lay tells TMZ he recently beat leukemia. Carter, who has 2 kids, was 44.

Khloe Kardashian
No Place in My Life for Tramps

Khloe Kardashian has deep love for her dad, but she's glad he's finally getting off her butt. Khloe posted a video of a laser removing the "Daddy" ink honoring her late father Robert Kardashian. Nothing against her pops ... just the geography. It'll take 7-12 trips to the removalist for the whole thing to disappear. She better get started on that Lamar ink on her wrist ... STAT!

Joan Rivers
Her Death ... One Year Later

Joan Rivers died a year ago today, and a lot has happened: 1. Melissa Rivers filed a wrongful death lawsuit against Yorkville Endoscopy, the clinic where Rivers went into cardiac arrest during a throat procedure. The case is pending. 2. The feds blocked the clinic from getting Medicare and Medicaid payments. 3. The New State Dept. of Health determined the clinic screwed up by administering an improper amount of propofol to Joan. The Dept. also concluded Yorkville's crash cart was lacking a certain drug that could have helped save Joan's life. 4. Joan's personal doctor, Dr. Gwen Korovin, was also put on the hot seat. The Dept. of Heath said Korovin was in the operating room without authorization, despite her claims she was invited. Melissa's suing her as well.  5. A big deal was made of the fact that someone took a selfie during the ill-fated procedure. Dr. Korovin claims she had no idea another doctor was taking a pic, but Melissa says the photo was taken at Korovin's behest. 6. "Fashion Police" replaced Rivers with Kathy Griffin, but that ended in disaster. Griffin quit and the show went on hiatus, but returned on Monday, August 31. Melissa's now the host. #RIP