take a quick walk around kannapolis, and you see empty stores and hear disappointment. >> i don't see where it's helped a lot. >> reporter: the owner of the breakfastime diner says the research campus hasn't come close to replacing the mill. >> the mill used to do catering orders every single day of 1,500, 2,500 orders. then, it just disappeared. and we thought the whole bio campus was going to benefit everybody, but it's been a slow process. >> reporter: the week we visited kannapolis, researchers said they were closing in on a possible breakthrough in understanding multiple sclerosis. they said they were learning that the disease attacks men and women so differently, that it might be two diseases. discoveries like that are, of course, the dream of the campus's billionaire founder, david murdock, and study participants like gilbert cantrell. >> i think nothing but good is going to come out of this research. >> reporter: you're in? >> i'm all in. >> stewart: thursday, a san francisco police officer shot and killed a woman who was suspected of driving a stolen car. the police later sai