A shark killed a swimmer off a Perth beach while onlookers watched

A shark killed a 63-year-old swimmer within sight of a crowded shoreline at Sorrento Beach, in Perth’s northern suburbs, on the morning of September 18, 2026. Onlookers gathered on the footpath above the beach as police boats and a helicopter searched the water after a witness reported a pool of blood spreading near the shore.

A member of the public had reported a shark roughly 2.5 metres long swimming close to shore shortly before the attack. Police confirmed only that a male swimmer had died as a result of it, and the closure that followed stretched almost 12 kilometres of coastline, from Marmion to Iluka, keeping beachgoers out of the water into the weekend. The attack came just a week after Surf Life Saving WA resumed weekend helicopter shark patrols ahead of summer, with daily flights not scheduled to begin until September 26.

A Friday Morning Swim Turns Fatal

The victim was later identified as Greg O’Neill, a 63-year-old described by his family as a devoted father, grandfather-to-be, brother, uncle, husband and “generous, devoted family man.” O’Neill had been swimming close to the shoreline with a friend when the shark struck; only his companion made it back to the beach. “He was a generous, devoted family man that gave his children so much love, care and opportunity,” his family said in a statement. “Greg loved the ocean and was known as a passionate swimmer, sports lover, dedicated worker and an all round generous, witty guy.” Family members visited the beach the next day and joined locals in laying floral tributes near the site of the attack.

Witness Jacqui Rapaic was walking along the beach when she saw the water discolour near the shoreline. “My friend said, ‘Jac, I think there’s been a shark attack’ and I looked out to the ocean and I could see a pool of blood,” she told the ABC. Rapaic believed two men had been swimming and that only one returned to shore, an account police later corroborated when they confirmed the fatality. Nearby, beachgoer Russell James said he saw “a bunch of police and ambulances” gather near the groyne within minutes, with what appeared to be surfboards or paddle boards left at the water’s edge.

Perth’s Third Deadly Encounter of the Year

O’Neill’s death was the 24th fatal shark attack recorded in Western Australia in 26 years, and the third this year alone — a toll not matched in the Perth metropolitan area in a decade. Earlier in 2026, spearfisher Steven Mattaboni died off Rottnest Island and fellow spearfisher Daniel Turpin was killed near Albany within weeks of each other, while Geraldton firefighter Mel Ismail was injured in a shark attack about 400 kilometres north of Perth just three days before the Sorrento attack.

Western Australia has cycled through aggressive and conservative shark policies before. A controversial 2014 trial under then-premier Colin Barnett saw 68 sharks caught and killed on baited drum lines without a single great white among them, and the state’s Environmental Protection Agency later recommended abolishing the approach over uncertainty about its effect on shark populations. That recommendation has not been revisited since, even though New South Wales and Queensland still use drum lines in their own mitigation programs.

A Rare Catch-and-Kill Order

Western Australia’s Fisheries Minister, Jackie Jarvis, took what she called an “extraordinary” step in the attack’s aftermath: authorising the capture and killing of the shark that killed O’Neill, after Water Police positively identified the animal before it swam away. She stopped short of ordering a wider cull, saying it was “not appropriate in these circumstances” because white sharks are protected internationally, and that she did not want to give the public “a false sense of security.”

Jarvis said she weighed “the exceptional circumstances of the attack, the hazard posed by the shark, and the potential recovery of coronial evidence” before signing off on the order, which she believed was the first of its kind issued in Western Australia in a decade. Capture gear resembling a drum line built for tagging, rather than killing, was deployed at Sorrento within a day, though choppy conditions stalled a second attempt to set it the following afternoon.

Tracking and Tagging Sharks Along the Coast

Longer term, Western Australia’s shark-mitigation strategy leans on tagging rather than culling. The Department of Primary Industries and Regional Development runs an ongoing white shark tagging program that feeds a Shark Monitoring Network of satellite-linked receivers, alerting beachgoers through the SharkSmart app when a tagged shark swims close to shore. In a 2024 update on the program, DPIRD’s Shark Response Unit manager, Michael Burke, said the department relies on the public to report sightings — including whale carcasses, which draw sharks by releasing an oily residue as they decompose — so crews can move quickly to tag animals already in the area.

Sorrento’s own shark barrier, at the northern end of the beach, was pulled down by the City of Joondalup in 2020 after it fell into disrepair. Jarvis said she was willing to revisit the idea with the council but gave no timeline for doing so. By Saturday, O’Neill’s body had not been recovered, and beaches from Marmion to Iluka remained closed while police and DPIRD crews continued searching for both the shark and the man it killed.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.