Detectives have issued a fresh plea for help in an investigation into a house fire which killed a teenage boy in inner Sydney 15 years ago.
Thirteen-year-old Arthur Haines suffered extensive burns in the blaze at Waterloo on April 9th 1998.
He died in Westmead Children's Hospital about 11 weeks later.
Police say the fire, which was at the boy's friend's house, was deliberately lit.
Acting Redfern Local Area Commander, Detective Acting Superintendent Leanne McCusker says nobody has ever been arrested.
"Someone in the community must know how this fire started and I would imagine that living with that secret for the past 15 years has been burdensome," she said.
"I would strongly appeal to anyone with information that might assist our inquiries to come forward.
"You would not only be helping us to bring those responsible to justice but also give Arthur's family much-needed closure," she said.
Arthur Haines' mother Julie Szabo says her son's death is still painful.
"Fifteen years have passed since we lost Arthur but our hearts still ache for him," she said.
"We are desperate for answers and hope someone might provide police the information they need to catch those who took Arthur from us."
The New South Wales Government's $100,000 reward for information, which was first offered in 2000, is still current.
Anyone with information should contact Crime Stoppers on 1800 333 000.