Mateusz Woznicki death: Marcin Woznicki sentenced for manslaughter
A man has been jailed for 10 years for the manslaughter of his older brother who he stabbed in a row at his house.
Mateusz Woznicki, 27, was found fatally injured at an address in Leveret Close, Chellaston, Derby on 21 July last year.
Police said Mr Woznicki suffered serious wounds and was pronounced dead at the scene.
Marcin Woznicki, 23, of St Clare's Close, Derby, had denied murder but was found guilty of manslaughter at Leicester Crown Court.
During his trial it was heard the stabbing happened at a housewarming party being hosted by Mateusz Woznicki and his girlfriend.
Det Ch Insp Emlyn Richards, from Derbyshire Constabulary said the brothers had a "sibling rivalry and jealously" that ultimately led to one brother attacking the other at the party.
Mateusz was stabbed four times in the back and side.
Det Ch Insp Richards said the death had "torn a family apart".
"Fratricide is thankfully rare and Mateusz was killed by a person whom he should have been able to trust implicitly," he added.
"Instead his younger brother cruelly took his life, along with the hopes and dreams of those who knew and loved him."