A hairdresser who stabbed a man to death at a house party in Nottingham has been jailed for eight years.
Robert Mather, 23, was convicted of the manslaughter of Stuart Lownds and cleared of his murder at Nottingham Crown Court.
Mather stabbed the 18-year-old with a sword after partygoers refused to leave his house in Gainsford Crescent, Bestwood Estate, in June 2009.
Mr Lownds had intervened in a fight between Mather and another guest.
Judge Michael Stokes QC told Mather that his violence had led to the needless death of an innocent man.
He said: "For a mum to lose her 18-year-old son in this way must be literally unbearable and the tragedy of that night last year is that there was no reason for this to happen at all."
Mr Lownds was found injured at his house in Teviot Road in Bestwood after the party.
He was taken to the Queen's Medical Centre but died two days later.
