A man killed his biological father on Christmas Eve hours after finding out he was his son.
Martin Greensmith, 37, pushed Steven Shevels, 61, causing him to hit his head on the concrete floor of a pub beer garden. He died from his injuries.
Greensmith, 37, was jailed for six years at Newcastle Crown Court on Friday after being found guilty of manslaughter.
The court heard Greensmith went to the Queen's Head pub, in Willington, Co Durham, on Dec 24 last year with his family.
