mayor michael nutter, more than frustrated. if you want to act like an idiot, if you want to act like an [ bleep ], if you want to be a low life in this town, we will track you down like the dog you are. reporter: nutter says they re committed, because lives depend on finding a solution. what happens next, you know, we elevate the discourse, we bring people together, we build a movement. we stop the killing. reporter: a major challenge for a city where murder has become routine. sarah hoy, cnn, philadelphia. that was our sarah hoy reporting. and to see more of the crime scene pictures from this special cnn report, go to cnn.com. now, in the wake of shootings across the country, the attitudes of americans towards guns, we ve found, has not really changed at all. now, just take a look at this new cnn orc poll. overall, half of americans don t want restrictions or only minor restrictions. the other half want major restrictions on firearms, or just make them illegal, alto
jon: we froze the shot there. there s been some kind of a loss. that s a live broadcast, that s the cockpit view that the shuttle commander sees, now live. final approach to the kennedy space center, more than 30 seconds to go. landing gear is down and locked. touchdown, the nose of the shuttle being rotated down toward the flight deck, parachute being deployed. and nose gear touchdown, and the end of an historic journey, and to the ship