jamal kiyemba , 36 , was detained in the ugandan capital kampala in connection with the death of joan kagezi , who was killed in front of her children days before a major trial against islamist terror network al-shabaab .
kiyemba , a former pharmacy student at a university in leicester , was held at guantanamo bay for four years and awarded the huge payout after being released .
the 36-year-old is one of 16 former guantanamo prisoners awarded a £ 20million payout from the british taxpayer over claims of false imprisonment and human rights abuse .