rashard pinkney died in the hospital and an officer who tried to control the scene was allegedly attacked by a 17-year-old. police say she pushed the officer twisting his ankle and breaking his leg. she's now facing assault charges. >>> right now nasa managers are preparing for a second spacewalk this week to install a new cooling unit aboard the international space station. nbc's brian moore reports. >> reporter: two american astronauts ventured outside the international space station on an emergency mission to replace a cooling pump that failed ten days ago. that equipment break down virtually shut down the orbiting lab. >> so, we have three good -- >> great news. >> looking good so far. >> reporter: outside for nearly five and a half hours, the astronauts carefully removed the 780-pound ammonia pump. >> about the size of a refrigerator. >> reporter: the view 230 miles above earth was breathtaking. but this mission has more than its fair share of perils. >> i feel a lot of water on the back of my head. but i don't think it is from my back. >> reporter: recent concerns about a potential

learned the shooting happened at a house party after midnight on north marlton avenue. 19-year-old rashard pinkney was found shot in front of another home that was just about a block away. he died in the hospital. meanwhile an officer who tried to control the scene was allegedly attacked by a 17-year-old. police say that she pushed the officer and he ended up twisting his ankle and also broke his leg. that 17-year-old is now facing assault charges. >>> a colorado community grieving this morning after the death of a 17-year-old girl. claire davis was shot after one of her classmates opened fire at her high school on december 13th. she spent a little over a week in a coma trying to recover from her critical injuries. last night she died in the hospital surouned by her family. her loved ones issued a statement thanking the community for its support and all those who tried to save their daughter. >>> right now more fallout from that target security breach. chase bank is now notifying its customers affected by the breach. the company says that it will impose withdrawal limits on debit cards for nearly