1990 Strangeways Prison riot April, HM Prison Durham, HM Prison Winchester and HM Prison Wandsworth on 4 April, and HM Young Offenders Institute Glen Parva on 6 April. The weekend of 7 April and 8 April saw protests across the prison system. At HM Prison Leeds there was a sit-down protest after the arrival of over 100 prisoners who had been transferred from Strangeways. At HM Prison Dartmoor, between 100 and 120 prisoners wrecked D wing of the prison, and 12 prisoners also protested on the roof of C wing unfurling a banner that read "Strangeways, we are with you". 32 prisoners from Dartmoor
Apodaca prison riot area. The Apodaca prison was built to house 1,500 inmates, but had around 3,000 incarcerated at the time of the riot. After the split of the Gulf Cartel and Los Zetas in early 2010, both groups have been battling for Monterrey and other areas in northeastern Mexico. And although no firearms were used in the fight between the two groups, the fact that their turf war goes as far as to Mexico's prison system only "emphasizes the bitterness of their rivalry." More importantly, however, the massacre, and the involvement of the prison guards in the escape, highlights the problems facing