The son of famed Chinese opera performer Lam Ka-sing died yesterday after burning charcoal in his Kowloon City apartment in an apparent suicide. Lam Yun-tim, 39, was found unconscious by his aunt's domestic helper beside a charcoal stove on the floor inside the Waterloo Road flat about 11am. The maid alerted security guards, who called police. Lam was taken unconscious to Queen Mary Hospital, where he was declared dead. Police said they found a suicide note addressed to his parents, in which he expressed unhappiness. They declined to give details. Lam, a bachelor, lived alone in the flat and police said all its windows were closed. A neighbour said Lam worked in accounting and the flat had been bought in his parents' names about 30 years ago. Assistant Kowloon City divisional commander Chief Inspector Lau To Yuet-ha said initial investigations indicated suicide, and no foul play was suspected. Lam was the youngest son of veteran Cantonese opera star Lam Ka-sing, 70, who lives in Canada with his wife and eldest son. In 1999, Lam Ka-sing was named an Honorary Fellow of the Hong Kong Academy for Performing Arts in recognition of his contribution to Cantonese Opera. He learned the art and began performing at public playgrounds when he fled to Guangzhou after Hong Kong fell to the Japanese in 1941. After the second world war, he returned to Hong Kong and continued performing. Suicide hotline numbers: Samaritans (multi-lingual) 2896 0000, and Samaritan Befrienders (Cantonese) 2389 2222.