A teenager has been charged with murder after a cleaner was found stabbed to death on Saturday morning in the Swiss Re building in the City.
Eighteen-year-old James Kerlit, from Chadwell Heath, East London, is accused of killing Michael Bowen, 34, from the Ilford area.
Bowen's body was found in the building where he worked as a construction cleaner on an unoccupied floor.
Kerlit is due to appear before City of London Magistrates.