lost, martin. at just 8 years old, martin was the youngest victim of the boston marathon bombing back in 2013. today, henry pausing near the finish line at the memorial before continuing on. then crossing the finish line, hugging his family. 21-year-old jacob allen racing for ukraine. jacob is from ukraine, adopted as a teenager by his parents in houston. born with spina bifida. today, he was in boston. hi, david. jacob telling us he s been moved by america s compassion for ukraine. people get united, together stronger. reporter: at the finish line, ourtati riard, rning f sing ou that s all i could think about. honoring his