Just heard on my Boston news, one is an 8 year old child who died and their 3 year old sibling has lost limbs. That poor family took their kids to see a marathon and to enjoy school vacation.............how sad is that? Some people are sick beyond belief!!!! My station says there is a "person of interest" that they are holding. Of course, there were many video cameras in the area, and they are looking at each tape to see who put the backpacks in the garbage cans, as that's how they believe the explosives were placed. Boston has cut all cell phone tower services, as they think the bombs were detonated via cell phone signals.