A 35-year-old British citizen living in Australia was killed in a brutal shark attack last year in what researchers are calling a "provoked incident." 

Simon Nellist, a diving instructor and former UK Royal Air Force serviceman, died after being attacked in February 2022 by what witnesses described as a 15-foot great white shark at Buchan Point, near Little Bay, southeast of Sydney,

The incident, Sydney's first fatal shark attack in decades, shocked the world. Extremely graphic video of the attack emerged online. The video shows thrashing in the water and a pool of blood about 50 yards off the coast.

A witness, Kris Linto, said the swimmer was in the water when the shark "came and attacked him vertically."

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The International Shark Attack File (ISAF), a global database of all known shark attacks which is run by the Florida Museum, has classified Nellist's death as a "provoked incident." The database classifies "provoked incidents" when a "human initiates interaction with a shark in some way."

Gavin Naylor, director of the Florida Program for Shark Research, told The London Times that Nellist was "in no way intending to provoke" the shark had been swimming in an area where people were fishing.

"We find that a large fraction of bites that are reported to us occur where people are fishing and there is chum or bait in the water. Fishing brings bait fish closer to shore than they might otherwise be, and sharks often follow," he said.

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He explained that these circumstances might have "excited" the shark or induced "atypical behavior."

As a result, ISAF classified the incident as "provoked," Naylor said.

In 2022, ISAF investigated 108 alleged attacks worldwide in 2022. It confirmed 57 attacks of unprovoked shark bites on humans and 32 provoked bites.

The organization shared that in 2022 there were nine shark-related fatalities worldwide, with the U.S. leading in unprovoked shark attacks. 

The Phoenix Police Department announced they have made an arrest in connection with the death of a 29-year-old female hiker who was found dead on a community hiking trail in a desert area over the weekend. 

At a news conference on Thursday, May 4, deputies announced the suspect's arrest and described him as a man in his early 20s, but did not release the person's exact identity. The Arizona police department had previously shared a blurry image of the suspect after 29-year-old Lauren Heike was found dead on Saturday, April 29. 

Investigators said the suspect was arrested at the apartment complex where he lived, and a search warrant was served on his apartment. They also said the suspect was taken to the Phoenix Police headquarters for questioning.

Amber Winter, who lived in the same apartment complex as the suspect, shared a video of the unidentified suspect being arrested in a dramatic series of events. 

"It was around 6:00 p.m., I was walking my dog, saw about three SWAT trucks come in, 15 undercover vehicles pull up to a building," Winter told FOX 10 Phoenix. "They literally blew the door down, went in, screaming ‘get on the ground! Get on the ground!’ They detained the supposed suspect, and brought him out. He sat there for a while, while they went inside and were searching and were interviewing people."

The body of Heike was found along a popular community trail after police received a report of an apparent injured person around 10:30 a.m. on Saturday, April 29. The 29-year-old went hiking around 10 a.m. on Friday on the trail near 6500 East Libby Street, close to where she lived, the Phoenix Police Department said. 

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Police said the body was identified as Heike. She was pronounced dead at the scene and was found to have "trauma to her body," according to investigators.

Phoenix Homicide Lt. James Hester told reporters at a news conference on Wednesday, May 3 that Heike was found in a location that was not easily visible from the trail. Hester said she was attacked from behind and died due to her injuries.

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At a news conference, Heike's family remembered their daughter as a beautiful and sweet child "who was everything to us."

"It's horrific. As hard as this is for us, we’re grateful because we had such a beautiful child," Heike’s mother Lana said. "We’re grateful because she had such beautiful friends."

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Her father shared that he hopes that whoever is responsible for his daughter's death is held accountable.

"She was my little girl, and I'm going to miss her terribly," said her father, Jeff. "I just hope they can find whoever did this to her."