This 2006 image provided by the Monroe County Sheriff's Department shows William H. Spengler Jr. Authorities say Spengler, 62, set a house and car ablaze Monday, Dec. 24, 2012 in Webster, N.Y., and then opened fire, killing two firefighters and wounding two others. Spengler, who served 17 years in prison for the 1980 slaying of his grandmother, later killed himself after a shootout with police.  (AP Photo/Monroe County Sheriff's Department )