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What Happened
Long Island’s July 4 weekend, 2026 left a grim toll stretching from Jones Beach to the East End, with five serious incidents — a fireworks fatality, a serious fireworks injury, a child’s drowning, a shark bite, and a boat crash — unfolding between Friday and Sunday, according to a Greater Long Island report published as details continued to emerge into the early week.
The deadliest incident was in Central Islip, where a 37-year-old man was killed Saturday night when a firework he was in the process of lighting exploded and struck him in the head. Suffolk County Police said he was at a backyard party at his own home on East Sycamore Street when the blast happened. He was pronounced dead at the scene. No arrests have been announced, and detectives are asking anyone with information to come forward.
In a separate fireworks incident the same night, a 45-year-old Fort Salonga man was seriously injured when a firework struck him in the face at Callahan’s Beach at approximately 9 p.m. Saturday. He was rushed to Stony Brook University Hospital. Police characterized his injuries as serious but not life-threatening. As with the Central Islip fatality, no arrests have been announced in that case, and investigators are seeking witnesses.
Out east in Southampton, a 6-year-old Brooklyn girl drowned Saturday morning after being swept away by a current near Sebonac Inlet Road. According to Greater Long Island, she entered the water around 8 a.m. to retrieve a stray sandal that had drifted in. She was pulled from the shoreline by the current and carried into Sebonac Creek and then out toward Great Peconic Bay. A 16-year-old relative attempted to reach her but was unable to fight the current. A nearby kayaker pulled her from the water — she was unresponsive — and brought her to shore where first responders were waiting. She could not be revived. The Suffolk County Medical Examiner’s Office and Southampton Town Police are investigating.
At Jones Beach on Friday, a male swimmer was bitten on the foot in what officials believe was a shark attack — the first suspected shark bite of the 2026 season on Long Island. Emergency workers who responded found what appeared to be shark-tooth marks on the wound. The man was transported to Nassau University Medical Center as a precaution. Despite the incident, crowds packed the Jones Beach shoreline the following night for the July 4 fireworks celebration.
The final major incident of the weekend unfolded Sunday night in Sag Harbor Bay, where a boat operated by Peter Mangiameli, 57, of Southampton, struck a stone jetty at approximately 10 p.m. The vessel had eight passengers aboard at the time of the collision. Two of those passengers sustained serious injuries: the reported injuries among the two victims included a broken rib, a leg fracture, and a fractured vertebra. After the crash, Mangiameli docked the vessel — but then left the scene while the injured passengers were still being treated, state police said. He was subsequently arrested. New York State Police are asking anyone who witnessed the Sag Harbor Bay crash to call 631-756-3300.
Location & Road Context
The boat crash took place in Sag Harbor Bay, on the East End of Long Island, where the vessel struck a stone jetty. Sag Harbor Bay is a busy recreational boating corridor during the summer season, with heavy waterway traffic around holiday weekends. The fireworks fatality occurred in Central Islip on East Sycamore Street, a residential area, while the fireworks injury happened at Callahan’s Beach in Fort Salonga on the North Shore. The drowning took place near Sebonac Inlet Road in Southampton, at the inlet feeding into Sebonac Creek and Great Peconic Bay — a tidal area subject to strong currents. The shark bite occurred at Jones Beach, one of Long Island’s highest-traffic ocean beaches.
Investigation & Legal Proceedings
Peter Mangiameli faces a serious array of charges stemming from the Sag Harbor Bay crash, according to Greater Long Island. State police charged him with second-degree assault, failing to report the accident, and failing to provide identification, along with multiple violations of New York State navigation law. The investigation into the boating crash is described as ongoing. In the two fireworks cases, Suffolk County Police have not announced any arrests and are actively seeking information from the public. Southampton Town Police and the Suffolk County Medical Examiner’s Office are jointly investigating the drowning death of the 6-year-old Brooklyn girl.