Victoria Osoteku, the only girl found guilty of the killing schoolboy Sofyen Belamouaden at Victoria underground station, has been given a determinate sentence of 12 years.
Osoteku who was 18 at the time of the attack was seen on CCTV kicking the victim in the head as he lay dying on the ground.
Sofyen Belamouaden was stabbed 9 times in front of horrified commuters, during the rush hour at Victoria tube station two years ago. The court heard Osoteku bought a set of knives from Argos and gave them to the gang. She was behind the youth who led the charge after Sofyen fled down the stairs and fell into the ticket hall of the station.
Osoteku was found guilty of manslaughter and conspiracy to cause GBH
Last week three teenagers who had earlier been found guilty of murdering the schoolboy were jailed for life.
Ronke Phillips has been speaking to Sofyen's family.