Bolton Point killer Paul Newburn's stabbing sentence reduced on appeal

Evidence: A police officer carries evidence from the scene of the stabbing at Leumeah Place, Bolton Point. Picture: Simone DePeak

A NSW man who had been dumped by his partner has had his jail term cut for killing an armed good Samaritan who was trying to help her.

Paul Newburn fatally stabbed Glen Smith with a knife taped to the end of a curtain pole, after his victim jabbed at him with a golf club with a missing head.