and it's -- yeah, it's just a sense of unease. >> so what happened at the boston marathon has already been a topic of conversation in your house? >> right. it's come up in a few conversations with people. just like why in the past two years has this become an issue. >> i'm looking -- i'm looking at a map of the campus, and i'm seeing where these four buildings are, the science center, thayer, sever, emerson. where are you in relationship? >> i am about a ten-minute walk down towards the river from the yard. that's the location of elliott house so i'm 101 dunster street, the address of elliott. if i walked out of my house and walked straight for about ten minutes, i could be at the scene. so i'm hoping that's far enough away to stay safe. >> did you see or hear anything