Pentonville inmate murdered in smuggling wars

Three prisoners stabbed a fellow inmate to death as two warring gangs battled over their wing’s ‘lucrative’ contraband business, a court heard. Jamal Mahmoud, 21, was allegedly murdered with ‘calculated brutality’ as armed convicts clashed at HMP Pentonville in Islington, north London on 18 October last year. Mahmoud, known as ‘Kaos’, suffered a fatal stab wound to the chest after Basana Kimbembi, 35, Robert Butler, 31, and Joshua Ratner, 27, armed themselves and hunted him down on G wing, it…