Clive Derby-Lewis died 16 months after he was released from prison on medical parole. File picture: Juda Ngwenya/Files

Johannesburg – Clive Derby-Lewis, the man who supplied the gun that was used to assassinate struggle hero Chris Hani has died, his lawyer said on Thursday.

Derby-Lewis, 80, the mastermind in the Hani assassination, died in a hospital in Pretoria.

Hani, who was leader of the South African Communist Party (SACP) and chief of staff of Umkhonto we Sizwe, the armed wing of the African National Congress (ANC) was assassinated on 10 April 1993.

Derby-Lewis was denied parole several times since he began applying from 2010 to January 2015. The Hani family and the SA SACP consistently objected to his parole.

After several failed attempts, Derby-Lewis took his matter to court where the judge granted him medical parole on 29 May 2015.

Derby-Lewis was released from prison in June 2015 after serving 22 years. He died after a long battle with lung cancer.