RIP

1:47 PM PT -- Prince William and Kate Middleton just weighed in on the tragedy -- writing in part, "As parents, we cannot begin to imagine what the families, friends and loved ones of those killed and injured in Southport today are going through."

They went on to extend their condolences, while thanking first-responders who arrived on the scene.

12:28 PM PT -- Officials have now confirmed even more tragic news from this horrific incident -- namely, the fact that a second child has now died.

In addition to this ... cops have identified the alleged perpetrator as a 17-year-old male. His name has yet to be released -- and it's unclear if the authorities plan to do that.

A Taylor Swift-themed dance workshop in the UK turned into something straight out of a horror movie ... when a mass stabbing left a young girl dead and 7 others injured.

Pauly Shore is still gung ho on making a Richard Simmons biopic happen ... even though the beloved fitness guru is now dead.

The actor-comedian was at LAX Monday when a photog asked him the latest on Pauly's pet project ... which he's been trying to film for a while now.

Pauly says the biopic is still moving forward despite Richard's recent death ... though there is a holdup in terms of financing.

Ex-Major League Baseball pitcher Reyes Moronta has died at just 31 years old ... with local reports stating he was killed in an ATV accident in the Dominican Republic.

The Mexican Baseball League and the Bravos de Leon -- Moronta's club up until his release on July 25 -- confirmed the tragic news.

Multiple reports claim Moronta suffered fatal injuries in a traffic accident while driving a 4-wheeler at his father's house in Villa Gonzalez.

Sinéad O’Connor’s cause of death has been revealed one year after her tragic death ... with her death certificate listing multiple respiratory issues, according to reports.

The Irish Independent reports O'Connor passed away from COPD -- chronic obstructive pulmonary disease -- exacerbated by bronchial asthma. She'd also been suffering from a respiratory tract infection, a contributory factor.

While British authorities announced back in January O'Connor passed from natural causes -- no foul play suspected -- we didn't know the exact cause until this week.

Three members of the hit gospel family band The Nelons have died in a plane crash ... according to a statement by the fourth member of the band.

Autumn Nelon Streetman posted a joint statement with her management team Saturday morning telling fans her mother Kelly, stepfather Jason and sister Amber -- the other three current Nelons members -- died in a plane crash on their way to Alaska Friday.

Also killed in the crash according to the post ... Amber's husband Nathan Kistler, their assistant Melodi Hodges the pilot, Larry Haynie, and his wife Melissa.

Donald Trump is going back to the scene of the crime -- returning to the Pennsylvania town where he was nearly assassinated for another campaign rally.

The former president just announced plans for an event in Butler, PA, where he says he's going to honor the rallygoer who died during the July 13 shooting ... firefighter Corey Comperatore.

Trump says he will also be honoring the "brave patriots" who were injured by gunfire and survived.

An arrest has been made in the fatal stabbing of a woman in San Dimas, CA, which saw another woman strolling down a residential street with a Samurai sword and gashes on her leg.

Weichien Huang was booked on suspicion of murdering her wife Chen Chen Fei on July 18 ... according to the L.A. County Sheriff's Dept, which says Huang attacked Fei with a Samurai sword during a domestic dispute at their San Dimas-area home.

Huang also allegedly attacked Fei’s mom ... who managed to snatch the sword away from Huang and flee into the street to get help.

Shifty Shellshock's friends and family are ready for his grand send-off ... plans for his celebration of his life are finalized, and TMZ has all the details.

The Crazy Town frontman is being honored Aug. 11 at Academy LA ... and some fans will be welcome to join Shifty's loved ones in remembering him and saying goodbye.

Pasquale Rotella, CEO of Insomniac Events, is organizing the event -- he's a longtime friend of Shifty's -- and there are gonna be DJ sets by Graham Funke, Lady Sinclair, Edski and Trixter.

Snoop Dogg will be bearing the Olympic torch with a heavy heart ... because he and his family are mourning the death of his cousin, artist Darryl "Joe Cool" Daniel.

The Long Beach native recently passed away -- as announced by Snoop and co. -- and he was invaluable to the rapper's career ... serving as the brainchild behind Snoop's debut album "Doggystyle" artwork.

Snoop and Daz Dillinger shared multiple tributes to Daniel on Instagram throughout the week ... and the late artist's social media is also filled with several memories with Dogg Pound members all the same.

Lauren Alaina just shared some heartbreaking news -- her dad, J.J. Suddeth, has died.

The country singer broke the tragic news on IG Wednesday, writing  "We lost my daddy last night, and I really have no words yet." She didn’t share any details of the circumstances surrounding his death.

Lauren also cancelled her upcoming Savannah, Virginia Beach, and Charlotte gigs through Saturday ... saying, "I am going home to be with my family. Thank you for your prayers and understanding."

Francis Ngannou is speaking into a mic for the first time since his 15-month-old son died suddenly back in March ... and his words are nothing short of heartbreaking.

Ngannou made an appearance on Joe Rogan's "JRE MMA Show" Tuesday and he talked about a wide range of subjects, including the moments he experienced in the leadup to the death of his son, Kobe.

Ngannou revealed his son had mild inflammation of the brain ... which led to him fainting twice. The first incident happened while they were in Cameroon, but he said the doctors found nothing.

Don Buchwald -- the iconic super-agent who started his own firm and who's repped tons of stars, including Howard Stern -- has died ... TMZ has learned.

The longtime Hollywood power player's agency confirmed the sad news -- explaining he passed Monday at his Massachusetts home surrounded by loved ones. We're told he died of natural causes.

Don formed his bi-coastal agency Buchwald with five associates in 1977 -- and over the years, he built it into a leader for Hollywood representation ... in the areas of commercial, broadcast, film, theater, television, literary and emerging talent.

Esta TerBlanche left behind a bunch of animals -- including some very unique pets -- when she died last week, and they had to be collected by a third party ... TMZ has learned.

Law enforcement sources tell us cops got called to the "All My Children" star's home last week when her assistant went to her house to check on her because she hadn't heard from Esta ... who had just returned to the States from a trip overseas.

Our sources say the assistant found Esta Friday on the ground in her bathroom, called 911 and first responders pronounced her dead on the scene.

Keanu Reeves is sharing his candid thoughts on mortality, and the fact is ... "the end" is something that's top of mind for him right now.

The actor joined author China Miéville on the BBC to promote their new novel, "The Book of Elsewhere," which follows an immortal character who is eager to die -- which explains why the morbid topic was brought up in the first place.

As Keanu put it ... at 59 years old, he's "thinking about death all the time," especially since he described himself as "young-old."

New body cam footage shows the moment a white police officer in Illinois shot and killed a Black woman named Sonya Massey ... who actually called 911 for help.

The footage was released by authorities in Springfield, IL Monday -- which depicts Sangamon County Sheriff's Deputy Sean Grayson facing off with Massey earlier this month after she called the cops over suspicions of a prowler near her home.

In the video ... you see Grayson and his partner in Massey's house, where they're asking her to provide her ID -- and eventually, they tell her to get a boiling pot of water off the stove.

Sandy Posey -- who hit it big time in the '60s with her music career -- has died ... TMZ has learned.

The late pop singer's husband, Wade Cummins, tells us his wife passed away Saturday morning at her home in Tennessee -- this following complications from dementia, we're told.

Wade tells us Sandy had been battling dementia for a while now, with a slow decline over the past seven years. Aside from that, he says she was in relatively good health ... with no issues like high blood pressure or problems with any other organs.