Trooper attacked by pedestrian on I-57

June 12, 2012 2:56:46 PM PDT
An Illinois state trooper was attacked early Tuesday morning when he tried to help a pedestrian get off a highway.

Police say 46-year-old Mark Gaston of Richton Park was walking on the shoulder on I-57 in far south suburban Monee. He appeared to be incoherent when he attacked the trooper, officials said, and additional officers had to be called to subdue him.

Gaston is charged with aggravated battery to a police officer and resisting arrest.