FBI investigation thwarts "mass casualty attack" from Pennsylvania man accused of pledging ISIS allegiance

A Pennsylvania man planned to carry out an ISIS-inspired "mass casualty attack" before an FBI investigation thwarted him, according to federal law enforcement officials. Speaking at a press conference Tuesday, federal officials said Jonathan Kramer, 21, of Valencia, had pledged allegiance to the Islamic State of Syria. He was arrested Saturday outside of a hotel in Cranberry Township, around 25 miles north of Pittsburgh, with a rifle, ammunition and dozens of knives in his possession. Suspect shared "radical ideology" Richard Evanchec, special agent in charge for the FBI's Pittsburgh field office, called the planned attack an "imminent threat of violence...