A man armed with two semiautomatic handguns entered the lobby of a psychiatric clinic at the University of Pittsburgh on Thursday and opened fire, killing one person and wounding several others before he was shot dead, apparently by campus police, the mayor said.

Six people were wounded by the man's gunfire, Mayor Luke Ravenstahl said. A seventh suffered unspecified injuries but wasn't shot, officials said.

The mayor stopped short of confirming the gunman was fatally shot by at least one University of Pittsburgh police officer who responded. But he confirmed "police acted admirably and did engage in gunfire."

"There's no doubt that their swift response saved lives today," Ravenstahl said.

One of the injured was a police officer who Ravenstahl said was grazed by a bullet. Officials didn't say if that officer shot the gunman, whose identity and relationship to the clinic, if any, weren't disclosed.
More here: 2 dead, 7 wounded in Pa. psych clinic shooting - CBS News