 On 28 November 2006 , both men were sentenced to life imprisonment . The minimum termed for Carty was fixed at 21 years , and that for 18 @-@ year @-@ old Brown at 17 years . The trial judge said he could not tell who wielded the knife but considered both defendants equally guilty . Both sentences were referred to the Court of Appeal ( Criminal Division ) as " unduly lenient " by Her Majesty 's Attorney General , Lord Goldsmith QC . That court , constituted by the Lord Chief Justice of England and Wales , Lord Phillips of Worth Matravers , Mr Justice Henriques and Mr Justice Teare , increased Brown 's minimum term to 20 years , although it did not interfere with the sentence imposed upon Carty . 
 On 28 November 2006 , both men <a href='uninflect' title='1'><mark>were</mark></a> sentenced to life imprisonment . The minimum termed for Carty was fixed at 21 years , and that for 18 @-@ year @-@ old Brown at 17 years . The trial judge said he could not tell who wielded the knife but considered both defendants equally guilty . Both sentences <a href='uninflect' title='2'><mark>were</mark></a> referred to the Court of Appeal ( Criminal Division ) as " unduly lenient " by Her Majesty <a href='null_genetive' title='3'><mark>'s</mark></a>Attorney General , Lord Goldsmith QC . That court , constituted by the Lord Chief Justice of England and Wales , Lord Phillips of Worth Matravers , Mr Justice Henriques and Mr Justice Teare , increased Brown <a href='null_genetive' title='4'><mark>'s</mark></a>minimum term to 20 years , although it did not interfere with <a href='None' title='5'><mark>the</mark></a><a href='negative_concord' title='6'><mark>sentence</mark></a> imposed upon Carty . 
On 28 November 2006 , both men was sentenced to life imprisonment . The minimum termed for Carty was fixed at 21 years , and dat for 18 @-@ year @-@ old Brown at 17 years . The trial judge said he could not tell who wielded the knife but considered both defendants equally guilty . Both sentences was referred to da Court of Appeal ( Criminal Division ) as " unduly lenient " by Her Majesty  Attorney General , Lord Goldsmith QC . Tdatcourt , constituted by the Lord Chief Justice of England and Wales , Lord Phillips of Worth Matravers , Mr Justice Henriques and Mr Justice Teare , increased Brown  minimum term to 20 yrs , although it did not interfere with no sentence imposed upon Carty .