SPRING VALLEY, Ill. - A man under arrest inside a police station wrested away an officer's gun Saturday, beat the officer over the head with it and was later found dead of a gunshot wound in the building, authorities said. Robert McFadin, 31, was in a holding area when he allegedly took the gun and assaulted the officer. The officer then fled with another employee, leaving the suspect locked inside the building, Police Chief Douglas Bernabei said.When other law enforcement officers arrived, they entered the building and found the suspect dead of a gunshot wound to the head, Bernabei said....