1:35 PM PT — The Tallahassee Police Department said in a 4:30 PM ET news conference … two people are dead. They were not students. Police said a shooting suspect was detained. Five victims were hospitalized, with one in critical condition … the suspect was also being treated at a hospital.

Police said they have identified the shooting suspect … 20-year-old FSU student Phoenix Ikner, who is the son of a Leon County Sheriff’s deputy.

Police said the suspect’s mother is a deputy, who has been with the department for more than 18 years. That person appears to be Deputy Jessica Ikner, who is also a school resource officer.

Police said Phoenix Ikner, who’s “steeped in the Leon County Sheriff’s family,” attended numerous department training programs, and was on the sheriff’s youth advisory council.

The suspect had access to one of the deputy’s weapons, which was recovered at the scene … police said it’s believed the gun is the deputy’s personal handgun. He also had a shotgun with him, police believe.

The suspect is not speaking to investigators, police said. Police said the suspect did not comply with commands, and he was shot at the scene. Police don’t believe he fired at officers.

The investigation is ongoing.

Several people were wounded in a school shooting on the Tallahassee campus of Florida State University Thursday around noon local time … and at least one person has been arrested.

The university sent out an alert about an active shooter on campus and advised students and the public to shelter in place as law enforcement responded to the situation. More than three hours later, at 3:20 PM ET, FSU posted on its alerts page …. “Law enforcement has neutralized the threat.”

The Tallahassee Democrat reports six people have been hospitalized, with at least one person in critical condition … and a man has been detained. Tallahassee Memorial HealthCare confirmed the number of injured to the newspaper. No deaths have been confirmed by officials, the Democrat reports.

Surrounding schools were locked down during the response and the investigation.

Videos from the scene appeared to show the chaos on campus with uniformed cops running in the area with long guns. WCTV in Tallahassee reports students on campus at the time of the shooting heard about 15 to 20 gunshots.

A video posted by local reporter Forrest Saunders appears to show a shackled and injured person being loaded into an ambulance at the scene.

At 2:44 PM ET, the school posted a statement on its alert page — “Continue to shelter in place. Law enforcement is actively clearing rooms on the main campus. Law enforcement officers will use the safe word SEMINOLE to confirm it is safe to open the door. Continue to shelter in place until law enforcement contacts you.”

The Tallahassee Police Dept. said officials will hold a news conference at 4:30 PM ET and will broadcast it live on the department’s Facebook page.

Haley Joel Osment caused a stir at the chair lift before his arrest at California’s Mammoth Mountain resort earlier this month — and we have it on video.

Check it out … “The Sixth Sense” star — who’s notably wearing his helmet backward — is lined up and ready to pop a squat on the lift, but there’s one thing missing — his snowboard! Footage shows a female crew member trying to reason with him and remove him from the line, but he’s insistent on getting up the mountain even without his board to bring him back down.

Haley’s fellow skiers and snowboarders begin to grow impatient, with some even heckling him to get out of there. He ignores their demands … but turns around and shrugs them off — seemingly perplexed by their anger.

The actor must have been on a mission to get up Mammoth Mountain — but his determination eventually diminished, and he removed himself from the line shortly after the crew member confirmed ski patrol was on their way to defuse the situation.

A clip of Haley finally walking out of the queue shows a slight smirk on his face … and an eyewitness tells TMZ he strolled over to his snowboard and “fumbled around with it.”

The bystander also says he absolutely reeked of alcohol.

As you know, the brother of actress Emily Osment was arrested at the California ski resort on April 8 for public intoxication and possession of a controlled substance. He was booked and quickly released … and now it’s up to the Mono County D.A. to decide whether or not to prosecute the case.

Mammoth Mountain declined to comment on his arrest.

Haley was also arrested back in 2006 for driving under the influence after he drove into a brick pillar. He pleaded no contest to DUI and one count of possession of marijuana.

Ivanka Trump is having some fun in the sun in Costa Rica, enjoying some quality time with her kids at the beach and surfing her butt off in the ocean.

Speaking of Ivanka’s rear end, President Donald Trump‘s daughter gave everyone a good look at it in her one-piece bathing suit — and, trust us, you won’t be disappointed when you catch a glimpse in our exclusive footage.

That’s right … TMZ obtained photos/videos of Ivanka and her children chilling on the sand and splashing around in the waters off Santa Teresa, Costa Rica.

An eyewitness tells us Ivanka’s hubby, Jared Kushner, was there, too, but he’s not seen in any of the snapshots or video clips shot Tuesday.

Back to Ivanka … check her out with her family hanging out on the sand. At first, she’s just standing there — fully clothed — observing people and looking out at the ocean.

Then Ivanka stands on a surfboard lying on the sand before stripping down to her one-piece and heading into the water with her board and her butt fully in the camera frame.

Once in the ocean, Ivanka shows off her surfing skills … riding the waves on her board with ease at times. At other times, she falls into the water with an instructor pushing her into the waves. And, as an added bonus, Ivanka gives us a few more butt shots during her beach outing.