Killer convicted using dog DNA in legal first

Left: Chrisdian Johnson, 22

A gang member who used his dog to drag down a 16-year-old rival before he stabbed him to death has become the first killer to be caught using a new animal DNA database that allowed officers to place him at the scene.

Prosecutors were able to prove that Chrisdian Johnson, 22, was at the murder site by analysing his dog’s blood — found both on him and at the attack site. Johnson, a member of the O-tray gang in South London, was with up to 20 members of his gang in a park in Stockwell when they surrounded Christopher Ogunyemi, known as Seyi, and his friends, from a rival estate. Read more