POLICE have appealed for information on the identity of an elderly street sleeper shot dead by a constable two months ago in a empty Mongkok building.
Police admitted an investigation into the man's background had yielded nothing.
A confrontation broke out on September 21 on the roof of the Hong Lok Street block, which had been sealed off by the Land Development Corporation for redevelopment.
The street sleeper had illegally taken over an empty flat and had allegedly attacked a guard with a spade.
Three policemen arrived but were held off by the man, who was wielding a chopper. He allegedly lunged at one officer, slicing his hand.
Newly graduated constable, Chong Ka-man, 19, fired twice into the man's chest to protect his colleague, police said.
The street sleeper, who had difficulty walking, had moved into the building about two weeks before the incident.