On the same day where the leader of “La Linea”, organization responsible for the car bomb that killed two Federal Policemen and a paramedic. The Mexican government finds out that 17 killings committed in nothern Mexico last week, were perpetrated by hitman already in prisoned. Apparently the jailed hitman were allowed to leave their cells with weapons borrowed from guards of the actual prison.



References:
http://www.informador.com.mx/mexico/2010/221004/6/el-20-operador-de-la-linea-tras-las-rejas.htm
http://articles.latimes.com/2010/jul/25/world/la-fg-mexico-killings-20100726