Pope Francis wraps up his trip to Mexico on Wednesday with some of his most anticipated events: a visit in a Ciudad Juarez prison just days after a riot in another lockup killed 49 inmates and a stop at the Texas border when immigration is a hot issue for the U.S. presidential campaign.<br />In his penitentiary encounters, Francis often urges inmates not to give up hope, telling them that he, too, has sinned and been forgiven.<br />But he also tells inmates not to let their suffering lead to violence - a message he may repeat given the deadly riot last week at Monterrey's Topo Chico prison, where rival gang factions bloodied each other with hammers, cudgels and makeshift knives.<br />Not long ago Juarez was considered the murder capital of the world, as cartel-backed gang warfare fed homicide rates that hit 230 per 100,000 residents in 2010.
