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 19 have been found guilty as of 21 February 2012. An investigation continues as to why the prison cells were opened, allowing the riot between the rival drug gangs. Mexican prisons have been notorious for being overpopulated, lacking adequate supervisors, and failing to meet prisoners' needs or prevent them from reoffending after release. Of the 44 killed, 35 have been identified. Rodrigo Medina is offering more than 10 million Mexican pesos (almost $800,000 U.S. dollars) for information leading to the arrest of the fugitives that escaped in the mass jailbreak. During the prison riot, over 300 family members arrived at