NSW Police Commissioner Karen Webb has condemned the actions of three alleged teenager killers.

Three teenagers have been charged over the stabbing murder of another teenager at the Sydney Royal Easter Show earlier this year.

17-year-old Uati 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.

After multiple appeals for information and a lengthy investigation lasting nearly three months, two 18-year-old men were arrested as well as a 14-year-old boy.

All three have been charged with murder.

Karen Webb told Ben Fordham she ‘can’t believe’ the actions of the teens.

Press PLAY below to hear the Commissioner’s full comments on the arrest

Image: NSW Police