The Boston Marathon injury count has gone up to 176 injuries and 3 deaths. 17 of those injured are said to be in critical condition. The youngest of the dead has been named as 8-year-old Martin Richard, who was waiting to give his father a hug after he finished the marathon. His six-year-old sister had her leg amputated while his mom remains in critical condition after undergoing surgery for brain injury. The family live in Dorchester.