Cyrena Barned said outside court that she was pleased with the 31-year sentence received by Dean Smith, for the murder of her brother Aarron McKoy.
More top news
Police are concerned for the welfare of a 12-year-old boy who is missing from home in Stockwell.
A motorcyclist was left in a critical condition following crash near Upton Park, police said.
Detectives have launched a murder investigation following a stabbing in Camden.