12-year-old muhammad and his 15-year-old brother were wounded when mortars hit their parents' home. muhammad lost several fingers on his left hand and his whole right hand. their father swears revenge. gadhafi should be killed, he says. he's not a human. and he should it be killed. but for now the medical staff at one of the few functioning hospitals are struggling to keep many of the wounded alive. they lack even the basics. anesthetics, operating tools and space. some patients must stay in the parking lot, the emergency room is in a tent in front of the building. >> we live here now. all the doctors and medical staff, they live here now. >> reporter: and they won't leave any time soon. as opposition fighters struggle to hold on to this downtown and forces loyal to moammar gadhafi continue to pound what not long ago was one of libya's most