Clues may unravel puzzle of killings of Julie-Anne Leahy and Vicki Arnold DOUBLE DEATH: Friends Vicki Arnold (left) and Julie-Anne Leahy on Ms Leahy's wedding day. DID he ever wonder? Alan Leahy sat motionless in the courtroom dock during a third inquest hearing into the death of his wife Julie-Anne Leahy and her best friend Vicki Arnold. The counsel asked the innocent question again. Did he ever wonder who or what lured the two women into the dark on that ill-fated night? "No," said the 49-year-old Perth-based carpet-layer. I never wondered. For 20 years, the deaths of Leahy and Arnold had baffled investigators and intrigued the public. Alan Leahy was the last to see the pair and the inquest heard he was on the brink of financial ruin when they disappeared from his Atherton home in July 1991. The courtroom was told Leahy received $120,000 from his wife's life insurance and sued the estate of accused killer Arnold for $45,000. DEATH PUZZLE: Vanessa Stewart, sister of Julie-Anne Leahy. Described during the inquest as charismatic and manipulative, the court was told he had seduced Arnold, 27, a lonely, obese, mild-mannered accountant. The third inquest, held in Cairns in November 2011, heard Leahy was about to be unmasked by Julie-Anne, 26, over his sexual exploitation of her 16-year-old sister Vanessa when the pair vanished on an alleged midnight fishing trip. Two weeks later the women's bodies were found on a remote bush track in the Herberton Ranges, west of Cairns. Within an hour, a botched police investigation deemed the case a murder-suicide on August 9, 1991. But did he ever think about how both women ended up violently bashed, strangled, stabbed and shot inside their 4WD with no signs of a suicide pact in one of the state's most perplexing murder mysteries? Counsel assisting the Coroner Ralph Devlin, SC, in the third inquest, had just opened his questioning of Leahy, who for the first time was in the stand to give evidence in a two-decade-old murder mystery. CASE: Retired detective Bill Hendrikse was one of the first one the crime scene. "No," repeated Leahy. "You never wondered?,"' said Devlin. "Why not?" he asked. I'll tell you why not. Because you knew. You knew exactly what happened. You were there on that night. Weren't you? Six police probes and an unprecedented three inquests ended in an arrest warrant on Friday when State Coroner Michael Barnes handed down his coronial findings in Brisbane and ordered Leahy be committed to stand trial on two counts of murder. Mr Barnes issued a warrant for his arrest and gave Leahy, who has remarried, two weeks to turn himself in to police to be extradited to Queensland and face the next sittings in Cairns Supreme Court. CRIME SCENE: The vehicle where the bodies were found. He found Leahy had motive, means and even a "how to" template to murder in a True Crime magazine. It was the new evidence in the third inquest of former teen lover Vanessa Stewart, who had been his alibi, and that of retired police detective Bill Hendrikse who detailed a badly botched police case, that gave the State Coroner the evidence needed. The inquest heard Mr Hendrikse was first on the scene when the bodies were found on Cherry Tree Creek Rd, 800m off the sealed road to Herberton. He said: "Too many things did not gel." It was virtually impossible for Arnold to shoot her friend with a sawn-off rifle, bludgeon her with a rock, slit her throat with a knife, and strangle her with a seat-belt, he said. Hendrikse said Arnold then had to accidentally shoot herself in the leg, run up the road, lose her shoes, drag herself back to the vehicle, fire the gun through her chin, then fatally through her skull from behind the right ear. "It was a cold-blooded execution," he told the inquest. For me, there was a killer in the back seat. Hendrikse said he was told by his bosses it was a murder-suicide and to "shut up." He said he only came forward after he left the Queensland Police Service. Ms Stewart said she broke her silence on the affair because after years of mental therapy she wanted justice and peace. "I was innocent, naive, vulnerable," she told the inquest. I felt very controlled by Alan. It was misdirected teenage love. Leahy told The Sunday Mail: "Of course I will fight the charges."