Detectives investigating the murder of a 14-year-old boy who was stabbed to death on a bus in south-east London have named two teenagers they want to speak to.Aspiring rapper Kelyan Bokassa was fatally injured on a route 472 bus in Woolwich Church Street, near Woolwich Ferry, just before 2.30pm on January 7.Officers would like to speak to Colin Chabikwa, 15, and Mosawar Zazi, 16, and are appealing for the public's help in locating them, according to the Metropolitan Police.

Detectives investigating the murder of a 14-year-old boy who was stabbed to death on a bus in south-east London have named two teenagers they want to speak to.Aspiring rapper Kelyan Bokassa was fatally injured on a route 472 bus in Woolwich Church Street, near Woolwich Ferry, just before 2.30pm on January 7.Officers would like to speak to Colin Chabikwa, 15, and Mosawar Zazi, 16, and are appealing for the public's help in locating them, according to the Metropolitan Police.