Patrick Clancy, the father of three young children who were allegedly killed by their mother ran the Boston Marathon in their honor. He gave an emotional tribute to them at the finishing line on Monday. “I love my kids, they’re wonderful people. They had a lot of friends, everybody loved them,” Patrick Clancy told WCVB-TV. “They had short lives – but they had really good lives.” It was Clancy’s first marathon. He wore one of his daughter’s bows, a bracelet from one son, and an armband from the other son. Lindsay Clancy, allegedly strangled Cora, 5, Dawson, 3, and 8-month-old Callan with exerci…