Former Prisons Commissioner Emil Ranjan Lamahewa was convicted guilty and sentenced to death over the massacre in Welikada Prison in 2012.
The verdict was made by the Colombo Permanent High Court Trial-at-Bar.
Lamahewa was found guilty of one charge and released from four charges.
Former Inspector Neomal Rangajeewa who was also charged in the case was acquitted.
This was when the case was taken up before a Special Three-member Bench comprising Justices Gihan Kulatunga, Pradeep Hettiarachchi and Manjula Thilakarathna today.
