for four people killed in this. officer sean collier gunned down at m.i.t. the 29-year-old beautiful woman, krystle campbell, the chinese exchange student lingzi lu and that 8-year-old boy who rese sm epitomizes this. as we talk about those that we lost, we also have to remember the victims. so many victims in this, some of them have lost at least one limb. and i want to share an inspiring story with you. we met a young man named mu muji karim, a double amputee. he was able to talk to us about how life does go on even after near death. his daily workout is about so much more than getting fit. it is about becoming himself again. this was muji two years ago.