A man allegedly murdered his wife after they had sex on the beach, claiming she was a "cyclops" filled with "devil and evil". Tahir Nawaz, 38, believed the day of judgment was coming and the soul of his wife Shazia, 33, would only "get forgiven" if she was dead, prosecutor Diane Crebbin said in her opening address to the Court of First Instance yesterday. Nawaz pleads not guilty to the murder on August 18, 2011. Shazia was found the next day by an elderly jogger. She was lying face down in her underwear by the water's edge on Dragon Beach near Castle Peak Road in Tsuen Wan. Her throat had been slit by a seven-inch knife, almost from "ear to ear". Police and emergency services officers pronounced her dead at the scene. The court heard Nawaz at first tried to strangle his wife with a mobile-phone charger wire - which broke - and then his hands. But when he found his wife of 13 years still breathing, he cut her neck with a knife, which police divers later found at sea. "The deceased was found to have severe and deep cuts to the throat on the front of her neck, and those cuts extended from ear to ear almost to the back of her neck," the prosecution counsel said. The defendant left his shirt and shoes on the beach and injured his right foot on rocks. A trail of bloodstains, matched to his DNA, was discovered on a concrete footpath along the beach and continuing towards Castle Peak Road. Two witnesses testified to seeing a shirtless South Asian man, wearing only his trousers, walking barefoot along that road at 10.30pm on August 18 last year. The couple married in Pakistan in 1998 and had three sons. The defendant's family is seeking refugee status in Hong Kong. The court heard Nawaz also married a second woman - an Indonesian with whom he has a baby girl in Hong Kong.