Susan Walsh, FILE

FILE - This Feb. 10, 1994 file photo shows Daniel and Brenda Kerrigan, parents of 1994 Olympics silver medalist Nancy Kerrigan, outside their home in Stoneham, Mass. Daniel Kerrigan was found dead Sunday, Jan. 24, 2010 in his home and authorities charged his son, Mark Kerrigan, 45, with assault and battery. A Massachusetts medical examiner said Tuesday, Feb. 9, 2010, that the elder Kerrigan died of a heart rhythm problem after suffering a neck injury so severe it damaged his voice box. His death has been ruled a homicide.