New information placing a white 1987 VL commodore at a Sydney house fire more than 20 years ago could help NSW Police solve a mystery which resulted in the death of a teenage boy.
Emergency services responded to reports of a house fire on Walker Street, Waterloo at about 10.30pm on April 9, 1998 where 13-year-old Arthur Haines was trapped on the top floor of the burning home.
The teenager - who was sleeping over at his friend's house - managed to escape the blaze and was taken to The Children's Hospital at Westmead with severe burns. He died 11 weeks later.
No one was ever charged in relation to the blaze despite scientific examination determining it was deliberately lit.
The matter underwent a formal review in January this year and the NSW government increased the $100,000 reward for information to $1 million in June.
New information allegedly places a white 1987 VL commodore containing two men at the rear of the property in Beaumont Street, Waterloo, at the time of the fire, a NSW Police statement said on Thursday.
"Detectives believe that one of the men got out of the vehicle before throwing a Molotov cocktail into the rear of the property," Detective Superintendent Danny Doherty said.
"That act has sparked the fire, which ultimately resulted in a 13-year-old boy losing his life, and a mother losing her only son."
Det Supt Doherty said new information suggests several people were present when the Molotov cocktail was being prepared prior to the fire.
"It has been 22 years since this horrific incident took place, and our message to those who were there, that now is the time to come forward and tell us what you know," he said.