Someone is keeping a "secret" about the unsolved killing of a teenager at the Sydney Royal Easter Show earlier this year, police believe.
Uati "Pele" Faletolu was knifed in the chest while on a break from working on one of the rides at the event in April of this year. He was 17 and an expectant father.
Today, police released nine seconds of security footage and asked anyone who recognises the people in it to come forward.
"We've decided to make a fresh appeal and release footage today in relation to people that were actually captured in an area where the stabbing did occur just shortly before the alleged brawl and the stabbing," Homicide Squad boss Danny Doherty said.
"And the people that were captured in the footage we believe would have significant information that may be able to progress this investigation."
He said some people pictured may have spoken to police already, but others have not and they want to interview them.
"We encourage them and urge them to come forward because we believe by coming forward you may be able to provide answers for the family of Uati and may be able to help police finally resolve this matter," Doherty said.
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Doherty also said investigators have been met with a "wall of silence" through the investigation and have urged people to speak to detectives.
"We do know there is people out there who have information and for whatever reason have not disclosed that information to the police," he said.
"They're either protecting someone, or just want to hold that secret for whatever reason."
Uati was stabbed on April 11, 2022, when what police described as a brawl broke out at the show.
The fight happened about 8pm in a crowded part of the event but police have so far been unable to piece together who was responsible.
Investigators do not believe it was a random attack, and another teenager, aged 16, was stabbed in the leg during the fight.