1990 Strangeways Prison riot April, and 40 prisoners held a prison officer hostage for twenty-four hours after taking over a hall at HM Prison Shotts on 10 April. On 12 April, two teenage remand prisoners at HM Prison Swansea barricaded themselves into their cell for seventeen hours, and on 22 April between 80 and 100 remand prisoners staged an eighteen-hour rooftop protest at HM Prison Ashfield in Pucklechurch. On 2 April newspapers reported a weekend of "anti-authority violence", as in addition to the Strangeways riot the Poll Tax Riot had occurred in London on 31 March. Reports of the violence at Strangeways included kangaroo
Apodaca prison riot the prison during the riot. Four days later, however, the new figures of the fugitives went down to 29. On 16 March 2012, the Attorney General's Office of Nuevo León confirmed that 37 prisoners had actually escaped on the day of the massacre. One of the fugitives, Óscar Manuel Bernal alias "La Araña" (The Spider), is considered by the Mexican authorities to be "extremely dangerous," and is believed to be the leader of Los Zetas in the municipality of Monterrey. Some other fugitives were also leaders in the organization. The fight broke out around 2:00 am local time between inmates