Blake Ryan Kennedy, 18 months, was a very independent and friendly child, always saying hello and goodbye, his father, Steve Kennedy, said. “He loved it. He couldn’t wait to get there. He didn’t know a stranger. He was always happy. He was always smiling. He was the perfect child,” Steve Kennedy said. Blake had attended America’s Kids day care since he was 6 weeks old, after his mother, Laura, returned to work in the Health and Human Services office in the federal building. Laura Kennedy received only cuts and bruises from the explosion, her husband said.