Phillies fan tasered after running onto field

A law enforcement officer and stadium personnel check on fan that was chased down after running onto the field before the eighth inning of a baseball game between the Philadelphia Phillies and the St. Louis Cardinals, Monday, May 3, 2010, in Philadelphia. St. Louis won 6-3. ((AP Photo/Matt Slocum))

May 4, 2010 4:25:42 PM PDT
A police officer used a Taser to subdue a teenager who ran onto the field during the Phillies game Monday night in South Philadelphia.