4/17: Manhunt continues for suspect in Facebook killing, meet the first woman to run the Boston Marathon
Authorities are searching for a suspect who allegedly shot and killed an elderly man -- apparently chosen at random -- in Cleveland, Monday's Boston Marathon was 70-year-old Kathrine Switzer's 40th marathon. It marked the 50-year anniversary of her first, when she blazed a 26.2-mile trail for women by being the first to compete in the prestigious race.