A teacher was attacked by a great white shark while spearfishing off the coast of Adelaide in February 2014. Sam Kellett was swallowed whole by the 16ft long white shark while he was practicing to compete in the Freedive Extreme Yorke Peninsula Spearfishing Competition, which was to be held the following day.

While 28-year-old Kellett's body is still undiscovered, police water operation divers have found his spear gun with "discernible serrated incisions" that resemble with white shark teeth impressions. A witness also said he spotted a large pool of blood, where previously Kellett had been.

"It made me turn around back out to sea and as I turned around I saw the tail of a shark come out of the water and it was thrashing around. I put my face under the water to see the shark, but I could not see it," said a witness, Aaron Whitaker, reported News.com.au.

"All of a sudden a white pointer shark came out the murky water vertically towards the surface just behind me and almost launched itself out of the water."

Meanwhile, the victim's parents, David and Ann, chose not to blame the shark and said in a statement: "He knew he was a visitor in their backyard and the last thing he would want is for this shark, or any other, to be hunted down and culled."

Kellett, a Glenunga International High School teacher, had initially planned to dive at a different spot, however a fire forced him, along with his friends, to move the Goldsmith beach, where he was free diving when the attack occurred. An inquest heard, how the shark thrashed its tail and launched itself out of the water to attack Kellett.

Shark attack incidents

The Australian Shark Attack File (ASAF) investigated 23 reported incidents of shark and human interaction occurring between 1 January to 31 December 2014 within Australian waters. Eleven of these incidents represent confirmed cases of unprovoked shark attacks.

The number of unprovoked cases last year was one above the 10 unprovoked encounters recorded in 2013 but remained below the average of 13 unprovoked cases per year.