John Myles Sharpe

The next day, Sharpe attempted to remove the spears but failed, removing only the shafts by unscrewing them from the heads. That same day, Sharpe took Gracie to, and then collected her from, her childcare centre. He also lied to a TV serviceman who came to the house. He later buried his wife in a shallow grave in their backyard. Some time after his wife’s death, Sharpe returned to Sport Phillip Marine (accompanied by his daughter) and purchased another spear for the speargun.

Claiming his innocence, he later appeared in emotional interviews on television seeking information on his family's whereabouts. Sharpe eventually confessed to the murders and was sentenced in 2005 to two consecutive terms of life imprisonment, with a non-parole period of 33 years. He will be eligible for parole in 2037. For his part in the crime, Sharpe became generally known as the "Speargun killer" or the "Mornington Monster."

Sharpe appeared in the Supreme Court of Victoria where he was arraigned and pleaded guilty to the murders. On 5 August 2005, the Court sentenced Sharpe to two consecutive terms of life imprisonment, with a non-parole period of 33 years. Sharpe resides in protective custody while incarcerated, due to threats on his life from fellow prisoners.

The Sharpe family murders was a March 2004 Australian double murder, in which John Myles Sharpe (38) killed his pregnant wife Anna Marie Kemp (41) and his 20-month-old daughter Gracie Louise, in the semi-rural city of Mornington. Sharpe repeatedly fired a spear gun into the heads of his victims, later exhumed the body of his wife from a shallow grave, dismembered her, then disposed of her body in a landfill.

On 21 March 2004, Sharpe and his family attended a nephew's birthday party. Others present at the party noticed no tension or arguments between the couple. On 23 March, Sharpe and his wife argued before retiring to bed. He later left the bed and retrieved the speargun from the backyard garage. Returning to the bedroom, Sharpe fired the spear from a distance of a few centimetres into his wife's left temple. Noticing his wife was still breathing, Sharpe fired a second spear into her head, killing her. He then covered the body in towels and went downstairs to sleep on a sofa bed.

On 27 March 2004, Sharpe put his daughter Gracie to bed in her cot and then drank several glasses of whiskey and Coke in order to "numb his senses." He retrieved the speargun from the garage, loaded it with the newly acquired spear, and fired at his daughter's head, penetrating her skull. With his child wounded and screaming loudly, Sharpe retrieved the two spear shafts which he had earlier removed from his wife's head and returned to the bedroom. He fired both into Gracie's head, but she was still alive, so he withdrew one spear and fired it again, finally killing her. He returned to her bedroom the next morning and pulled the spears from her head. Sharpe then wrapped her body in garbage bags and a tarpaulin and disposed of her body at the Mornington refuse transfer station. At the same time he discarded the speargun, the spears and some of Gracie's clothes and toys.

On 29 March 2004, Sharpe visited a local Bunnings Warehouse hardware store in Frankston, where he purchased a roll of duct tape, two tarpaulins, and an electric chainsaw. The following day, he exhumed Kemp and cut her into three pieces. He then wrapped the remains in a tarpaulin and disposed of them, along with the chainsaw, in waste collection bins at the Mornington Transfer Station. On the same day he sent a forged e-mail to Kemp's family in New Zealand to create the impression she was alive and well. Rather than comfort the family, his e-mail raised further concerns, and Kemp's mother reported her disappearance to police in Dunedin, New Zealand. Sharpe later told police that Kemp had moved to the nearby Melbourne suburb of Chelsea with their daughter, and denied any knowledge of or involvement in her disappearance. He also arranged for flowers in Kemp's name to be delivered to his mother-in-law on her birthday.

During May 2004, Sharpe gave several media interviews, and appeared on national television speaking of his wife and child's disappearance. In part of his appeal he said: "Anna, our marriage may be over but I still love you and you are the mother of our beautiful daughter Gracie, whom we both adore more than anyone else". Sharpe then said he had spoken to his wife a week earlier and he asked for anyone with information to come forward. He however also maintained that she had run off with another man.

On 20 May 2004, New Zealand Police requested Victoria Police to conduct enquiries into the apparent disappearance of Kemp and Gracie. The same day, police from Mornington attended the Sharpe home and spoke with him. On 10 June, he was again interviewed by police in Mornington but he maintained the story that Kemp had left voluntarily on 23 March. On 22 June 2004, police arrested Sharpe and interviewed him twice: during his first interview, he continued to deny any knowledge of their whereabouts, but during the second, having spoken to his family, he admitted to both murders. He told police he killed his wife because she was "controlling and moody" and their marriage was unhappy. He also told police he "was thinking of taking care of Gracie by myself and just amongst all this madness ... that's when I lost the plot". According to some family members, Sharpe may have also killed his wife because she discovered his abuse of Gracie. The claim comes as family letters reveal Sharpe had a history of sexually abusing children.

In 2003, Sharpe purchased a high-powered speargun and an additional spear at Sport Philip Marine, a local shop in Mornington. He had not previously shown an interest in spearfishing. He practised firing the speargun in the backyard of the couple's residence, in order to become familiar with its operation. Later that year, the Sharpes purchased a house at 116 Prince Street, Mornington. In November 2003, when Gracie was about 15 months old, Kemp became pregnant again. Sharpe later told police investigators that this pregnancy came as a surprise to him. Sharpe apparently decided that he did not want another child—in his mind, one was enough of a burden—and he began to resent Kemp and the unborn child.

John Sharpe was born 28 February 1967 in Mornington, where he also grew up. Sharpe met his New Zealand-born wife, Anna Kemp, when they worked together at the Commonwealth Bank of Australia. They married in October 1994 and lived together in various locations around the Mornington Peninsula area south of Melbourne. Their daughter, Gracie, was born in August 2002. She was born with a condition called hip dysplasia, a congenital abnormality in her hips which required orthopaedic treatment by a corrective harness for the first three months of her life. She cried often and had difficulty sleeping, a situation which appeared to place some strain on the marriage. Even after the harness was no longer required, Gracie still had difficulties with feeding and sleeping, for which Kemp sought professional assistance.