CELEBRITY JUSTICE ™

Mark Salling's computer not only contained pics of underage children in sexual scenes, some of the children were under 10 years of age ... this according to law enforcement sources.

As we reported, the LAPD's Internet Crimes Against Children Task Force seized more than a thousand images from the "Glee" star's desktop computer, and they still have to go through his cellphone, tablet and laptop.

Our sources say some of the images involve girls under 10 engaging in sexual activities.

We're told the cops were "100%" they would find what they were looking for based on an interview with a former girlfriend of Salling's as well as other evidence.

Salling was arrested for possession of child porn ... porn involving minors "engaging in or simulating sexual conduct." The Salling family posted $20,000 bail shortly after his arrest and he was released.

The "mean girls" hackers who just hit the "Dance Moms" stars again have something new to fear ... the FBI.

Our "Dance Moms" sources tell us, Monday's hack was the final straw and now some cast members -- including Kelly Hyland, whose two daughters were hacked, contacted the feds. We're told the FBI has actually been on the case since last month, but Monday's hack pushed it to the front burner.

We're told the FBI is not alone ... local law enforcement is also on the case.

Patrick Dempsey is racing to the courthouse with a lawsuit against a sports clothing company he says stiffed him.

Dempsey claims in the lawsuit -- obtained by TMZ -- he cut a deal with GBG Spyder, which makes active outdoor wear and performance gear. Dempsey claims he did a lot ... personal appearances, slapping the Spyder logo on his race cars, but only got $270,000 before the company stopped paying.

Mark Salling has bailed out of jail with the help of his family ... this after his arrest for allegedly possessing more than a thousand child porn images.

We got a shot of Mark leaving the jail -- leaning back out of view in the passenger's seat -- after being booked on possession of child porn ... specifically porn involving minors "engaging in or simulating sexual conduct."

We've learned the bail was set at $20,000 and his family posted it ... they put down $2k, or 10%.

11:45 AM PT -- Law enforcement sources now tell us they've already seen more than a thousand images of "child sexual exploitation" on Salling's computer. Cops also seized other electronic devices, including tablets and cellphones. We're also told he lives alone, which will make it hard to argue someone else put the images in the computer.

Our sources say when cops arrived to search the home, Salling was "shocked."

We're also told Salling has already lawyered up.

"Glee" star Mark Salling has just been arrested for possessing child porn ... TMZ has confirmed.

We're told the LAPD's Internet Crimes Against Children Task Force obtained a warrant and served it Tuesday morning, as first reported by the TV show "Crime Watch Daily."

We're told cops searched Salling's computer at his Sunland home and found hundreds of images. At the time of this post, Salling is being taken to the police station for booking.

Law enforcement sources say the images they captured from Salling's computer were children ... significantly younger than 15 and 16 year olds.

Our sources say an ex-girlfriend of Salling's tipped off cops and they investigated before the raid to make sure it wasn't a revenge allegation.

Salling has had his share of legal problems. In 2013 he was sued by a woman who claimed he committed sexual battery on her by forcing sex without a condom. Salling denied the charge and the case settled.

Story developing ...

"Dance Moms" cast members -- Abby Lee Miller, Mackenzie Ziegler and others -- got hacked Monday night in what looks like some brazen kids who keep coming back for more.

Sources close to the 'DM' cast members tell us the hackers have repeatedly gotten into their cellphones, iCloud, emails and PayPal accounts. The hackers have been posting phone numbers and other cast info on social media ... which is what happened again Monday night.

We're told Mackenzie awoke Tuesday to more than 2,000 messages.

The cast hired a P.I. 3 months ago to find the hacker, but they're super elusive. The P.I. believes the culprits are 4 underage girls, whom he's calling "The Mean Girls."

Melissa Mathison -- the 'E.T.' screenwriter and ex-wife of Harrison Ford -- is at the center of a mystery ... her will is missing, and turns out a lot is on the line because she's worth a bloody fortune.

Melissa -- who died last month from cancer -- had written a will but new court docs reveal her business manager can't find the original.

The court docs show Melissa is worth $22 million. Her fortune is all in a trust, but the document was not included in the legal papers so we don't know who's supposed to get it. She had 2 kids so it's a good assumption they'll get at least part of it.

So now the question ... what happens if the original will is never found? In California, as long as no one's fighting over her estate, a copy will do just fine.

Madonna's son didn't have to be sold by Guy Ritchie when the 15-year-old made the decision to stay in London ... we're told Rocco was fed up with the singer, her lifestyle and her parenting skills.

Sources who were on Madonna's tour tell us, Rocco was "miserable" being carted around the world by his mom. As one source put it, "There were horrible, full-blown fights with screaming and crying."

We're told during the Stockholm leg of the tour, Rocco was a no-show when the charter plane was ready to take off ... he had made an escape run, but it appears he eventually came back.

Things deteriorated during the London shows in December. Rocco told his dad he couldn't handle it anymore ... he couldn't take the traveling and the fights. Our sources say Rocco told Guy he felt like Madonna treated him more like a trophy than a son.

Rocco now thinks his mom is jealous of his dad's "stable life" and his desire to live with his dad.

Rocco has been ordered to return to NYC for a court hearing. It will be interesting to hear if his bad feelings dissipate and how much the judge considers his living preference.

Kylie Jenner needs protection from an obsessed/crazed fan ... and that comes from the cops who are trying to hold the guy at bay.

Law enforcement sources tell us, the L.A. County Sheriff's Dept. is advising Kylie to get an order prohibiting the guy from coming within a football field's distance from her or her home.

TMZ broke the story ... the man has tried to get at Kylie at least 10 times ... last week he tried to strong-arm his way into her gated community and got taken to a psych hospital, where he escaped.

We're told deputies were able to hunt the guy down and took him back to the psychiatric hospital. Problem is ... they can only hold him for 72 hours.

There's a good reason for a restraining order. If the guy violates it he can be arrested and held for a longer period of time.

San Francisco is on the hunt for the person who graffitied a sidewalk to promote Justin Bieber's new album ... and they want his record label to snitch out the culprit.

City Attorney Dennis Herrera fired off a letter to Universal Music Group ... claiming the Bieber graffiti won't come off ... even after a few recent rain storms.

Herrera said the Public Works crews have been called in to remove it, but that doesn't come cheap.

It's unclear if the city prosecutor wants the graffiti artist to foot the bill, or whether he wants to prosecute the culprit for malicious mischief.

Bieber's album, "Purpose," debuted at #1 on the Billboard charts ... so mission accomplished.

The daughters of a poet claim the folks behind "The Big Bang Theory" pilfered their late mother's poem and didn't pay a penny.

Edith Newlin published the poem in 1937 ... it's called "Warm Kitty." Her daughters Margaret and Ellen say in 2007, Warner Bros. wanted to use the lyrics for a song in the show -- a song the cast sings to Sheldon when he's sick -- which includes the lyrics, "Soft kitty, warm kitty."

Margaret says the studio cut a deal with a music company to use the lyrics, but not her ... and she says she and her sister are the rightful owners.

What's worse ... she says the song is part of 'Big Bang' merchandising.

So the song on 'Big Bang' has been used for years and now she wants the studio and others to ante up. She also wants an order prohibiting the show from continuing to use the song.

We reached out to Warner Bros. ... so far, no word back.

Kylie Jenner is safe for another 72 hours ... but after that, the crazed guy who's been trying to get at her could be on the loose again.

The man who tried to force his way onto Kylie's property last week has been caught again, after escaping from a psych ward. L.A. County Sheriff's deputies found the man and put him on another 72 hour hold.

TMZ broke the story ... Kylie's trespasser showed up at her security gate and tried strong-arming his way in. He was taken into custody and put on a psych hold ... where we're told he escaped.

The guy believes he's "soulmates" with the reality star.

Our Kardashian sources say the man will not go away and he's been at her property at least 10 times.

Law enforcement tells us the man will be watched more closely, but these 72 hour holds are just a stop gap.

The ex-NBA player who allegedly jacked a car from a hotel valet in Hollywood and then went on a joyride has been charged with a felony ... TMZ Sports has learned.

We broke the story ... Jeff Adrien was arrested for allegedly taking a sweet 2015 Mercedes S550 from a hotel valet on Dec. 7th without permission from the actual owner.

Adrien allegedly drove the car around town ... before eventually returning it to the hotel. He was arrested a short time later when the owner discovered what happened.

Adrien's rep had previously told us the whole thing was a giant misunderstanding and it would all be cleared up.

But now, we've learned that ain't exactly the case ... 'cause prosecutors have hit the 29-year-old with one count of driving or taking a vehicle without consent -- a felony.

YouTube network AwesomenessTV and online magazine Betches are at war ... and it's all over who's the bigger betch.

Betches is suing the YouTube network for slapping the word "betch" on several web series.

Betches says they own the trademark for the word "Betches" and AwesomenessTV has been skating a fine line by using the word in several satirical comedy series with titles like, "Betch: A Sketch Show" and "Ariana Grande Is Good At Everything - Betch!," among others.

When Betches asked them to stop, AwesomenessTV refused pointing out "betch" is fair game since it's a slang term used in colloquial American English.

Betches is asking AwesomenessTV to stop using their famous word and fork any profits they've made from using it.

AwesomenessTV tells TMZ Betches does not have a trademark to use the term "betches" for content.

'RHOA' star Peter Thomas says he didn't do anything to deserve the shade Apollo Nida threw at him from prison.

Apollo singled out Peter last Monday, calling him a "fake friend" on Instagram. It was pretty out of the blue ... Apollo's been radio silent since starting his 8 year sentence for fraud a year ago.

Sources close to Apollo tell us he became enraged after hearing Peter has been bad mouthing him, saying Apollo deserved his prison sentence for stealing and money laundering. Apollo feels betrayed by Peter, and is also upset he hasn't heard a peep from Peter since getting locked up.

Peter, who's married to Cynthia Bailey, tells us his number hasn't changed and he has no idea why Apollo would air his beef on social media instead of calling him from the slammer.

Peter says he's got a lot of friends in the big house and there's a drill ... they call you, because you can't call them. Peter could have sat down and penned a letter, but he says he's not much of a letter writer.

The way Peter put it to us, "If I am a fake friend because I don’t write a letter, then I’m a fake friend."

Brandon Davis has been charged with drunk driving in the single car wreck back in October that landed him in the hospital and totaled his Mercedes.

Our law enforcement sources say Davis' blood alcohol level was almost twice the legal limit. He was arrested at the hospital while doctors tended to his injuries.

Davis, heir to the Marvin Davis oil and entertainment fortune, would ordinarily be placed on probation, but his prior record could change that. He pled guilty in 2011 to coke possession. In the DUI case, worse case scenario for him is 6 months in jail.

Davis crashed after dinner at Matsuhisa in West Hollywood with pal Mike Comrie. Photos later surfaced of Davis downing wine before the crash.