Source:
https://scmp.com/article/736412/inmate-says-wounding-was-self-defence

Inmate says wounding was in self-defence

A maximum security inmate who dubbed himself 'Osama bin Laden' said a prisoner he was accused of attacking had beaten him previously and held a grudge against him.

Ho Yuk-wun, 51, was testifying about his alleged attack on fellow inmates Mak Siu-wing and Soong Kwok-fai on April 20, 2009, at Shek Pik Prison on Lantau Island.