Ten people were killed when a gunman opened fire at Oregon's Umpqua Community College on Thursday, forcing the nation to face yet another mass shooting.<br />Seven other people were injured, and the shooter is dead, Douglas County Sheriff John Hanlin told reporters.<br />Earlier estimates had put the number of people hurt much higher.<br />Multiple law enforcement officials familiar with the investigation identified the gunman as 26-year-old Chris Harper Mercer.<br />Investigators have interviewed members of his family and friends, they said.<br />"I will not name the shooter," Hanlin said.<br />"I will not give him the credit he probably sought."<br />Authorities credited a quick response by law enforcement for keeping the death toll from climbing higher.<br />The shooting appears to have started in one building before the gunman moved to the school's science building, a source with knowledge of the investigation told CNN.
