An inmate with a tattoo of Santa Muerte (The Saint of Death) looks on in the Topo Chico prison, during a media tour, in Monterrey, Mexico, February 17, 2016. The director of the prison in northeast Mexico where 49 people died in a riot which took place on February 11, 2016, was accused of murder and detained, along with two others, a state prosecutor said on Saturday. Picture taken February 17. REUTERS/Daniel Becerril