David Walsh murder: Dalton Barnett's manslaughter term increased
A man jailed for the manslaughter of a father who was stabbed as he tried to protect his son has had his prison sentence increased.
Dalton Barnett, 19, had his "unduly lenient" six-year term increased to nine years at the Court of Appeal.
He was convicted over the killing of David Walsh, 45, who was knifed in Hendon, Sunderland, in November 2015.
Barnett's father, Charles Lamont, and Raymond Brown were found guilty of Mr Walsh's murder and given life terms.
Brown was ordered to serve a minimum of 26 years and Lamont 13 years.
Lamont's sentence was also referred to the appeal court but was not altered.
David Walsh died from blood loss following 34 separate knife wounds.
Speaking after the hearing, Attorney General Jeremy Wright QC said, "David Walsh suffered horrendous injuries as he was set upon by the three armed offenders and stabbed and slashed to death. Unlike his killers he was unarmed."