The detective who led the investigation into the death of Holmfirth pensioner Adrian Smith has opened up about the case.

Detective Superintendent Simon Atkinson, of West Yorkshire Police's Homicide and Major Enquiry Team, spoke after Jacob Crawshaw was jailed yesterday for four years eight months.

The court heard how in May this year a drunken Crawshaw, 31, had been trying to “wind up” Mr Smith in a Huddersfield town centre bar and when he later saw him in the street, continued with his goading.

Jonathan Sharp, prosecuting, told Leeds Crown Court that Mr Smith eventually had enough, lunged at him catching his lip and it was then Crawshaw went after him in retaliation.

He got in front of him and punched him once with such force it caused him to fall back and fracture his skull when he hit the pavement hard.

He also suffered bleeding on the brain and although he was helped at the scene and rushed to Leeds General Infirmary his life could not be saved.

FULL STORY: Read the full report from the court sentencing hearing here

Speaking after Crawshaw was jailed following his guilty plea to manslaughter, Det Supt Atkinson said: "This was a tragic incident in which a mindless alcohol-fuelled moment of violence has resulted in the senseless waste of a life.

"After the assault, Crawshaw ran from the scene, not seeking any medical assistance for his victim, who later died as a result of his injuries in hospital.

"This case demonstrates the very serious potential repercussions of throwing a single punch.

"Crawshaw now faces spending several years behind bars having committed an act which robbed Adrian Smith of his much-earned retirement."