A WOMAN fell six floors to her death while trying to escape from a fire suspected of being lit by a relative who had a dispute over money with the woman's family. One other relative and seven neighbours were injured. The blaze was noticed just before 3.30 am on the sixth floor of Block 5, Lei Muk Shue Estate, when a family, woken up by their dog, discovered smoke and smell of paint thinner from an opposite flat. The case was last night classified as arson and homicide. Chan For-yau, 60, his mother, 84-year-old Leung So, and son, Wing-wai, 24, had to climb into a flat next door because their metal gate had been locked with bicycle chains from the outside by the arsonist. Mr Chan's wife, Fok Kwan-ying, 53, fell to her death from the balcony while trying to escape. His son was overcome by smoke. Neighbour Leung Hang-yuen, 46, and his two sons, Wing-kin, 25, and Wah-kin, 26, fled from their flat after seeing the other unit ablaze. Wing-kin tripped over a wooden plank and fell into a pool of paint thinner as he ran. He was critically injured as his upper body, arms and legs caught fire. The injured were taken to Princess Margaret Hospital. Police have appealed for witnesses to call district crime squad on 417-5266 or police hotline 527-7177.