Christina Edkins case: CCTV of killer Phillip Simelane released
2 October 2013 Last updated at 16:04 BST
CCTV images have been released of the man who killed 16-year-old Christina Edkins boarding the bus in Birmingham prior to her being stabbed.
Phillip Simelane, from Walsall, has been detained indefinitely under the Mental Health Act after killing the teenager in a random attack as she made her way to school in March.
The 23-year-old admitted manslaughter in a hearing at Birmingham Crown Court.
Images of him boarding the bus have been released by West Midlands Police.