Five killed in mass shooting outside Pittsburgh; manhunt underway

At least five people were killed and about 10 were wounded late Wednesday night in a mass shooting in Wilkinsburg, a suburb of Pittsburgh, Pennsylvania. The circumstances of the shooting are still being investigated, but it is known that the incident occurred when local residents were having a party in the yard of their home. One neighbor told CBS Pittsburgh that about 25 shots were heard. The shooters fled, and police launched a manhunt.