ิpaedophile arrested
mexican officials said late tuesday they had arrested former US university professor Walter Lee Williams, an alleged child sexual predator on the FBI's list of top 10 most wanted criminals. Mr Williams was arrested in Playa del Carmen, a seaside resort town just south of cancun on mexico's Caribbean coast, Quintana Roo state prosecutor Gaspar Armando Garcia said. Mr Williams is considered extremely dangerous and is being closely guarded, he said. The FBI put Williams, 69, on its Top Ten list on monday. A federal arrest warrant was issued against him on April 30.