Wife killer sentenced indefinitely to psychiatric hospital A 79-year-old man with a brain disease and dementia was sentenced indefinitely to Siu Lam Psychiatric Centre yesterday for chopping his wife of 45 years to death at their home on August 8 last year. Mr Justice Alan Wright in the Court of First Instance said Ng Kwok-yuen's situation would be reassessed in a year. Ng had been convicted of manslaughter rather than murder because psychiatric reports said he had a brain condition that impaired judgment. Ng wept as the court heard there was little prospect of him returning home because his sons would not welcome him. Ng killed So Yuen-yee with a chopper he bought two months earlier for the purpose. He called police after the killing and told them he could no longer tolerate his wife's nagging after decades of unhappy marriage. Explosives truck driver injured The driver of a government truck carrying explosives was injured when the truck collided with a tram at the junction of Kennedy Town Praya and Queen's Road West in Western. The Civil Engineering and Development Department vehicle was making a right turn into a construction site when the crash happened at about 2.30pm. The driver, 52, was treated for minor injuries at Queen Mary Hospital. Thief choked victim for Rolex A 76-year-old man was choked into unconsciousness by a robber on the fifth-floor staircase of a residential block in Kau Yuk Road, Yuen Long, at about 2pm. He regained conscious about 10 minutes later and found his Rolex watch missing. He was taken to Pok Oi Hospital. Man held for throwing items Police subdued and arrested a 46-year-old man after he threw items, including a broom, two plastic buckets and an iron bar, from the first-floor canopy of a building in Pei Ho Street, Sham Shui Po, at about 6.30am. No one was hurt. Hunt for hit-and-run driver The driver of a car that crashed into three parked vehicles at Yau Oi Estate, Tuen Mun, at about 4.30am is being sought by police after he abandoned his vehicle and fled the scene.