PHOENIX - A former student shot three people Thursday in a computer room at a Phoenix community college, injuring one of them critically, authorities said.

The shooting at South Mountain Community College was part of a running dispute between the suspect and one of the victims, said Sgt. Andy Hill, a spokesman for the Phoenix Police Department.

"This was not a random shooter going around the campus shooting," Hill said, noting that two of the injured people were struck by stray bullets.

NEW YORK - Carlos Delgado hit a tiebreaking, two-run double in the eighth inning and Oliver Perez stifled the Philadelphia Phillies again, helping the New York Mets earn a 3-1 win Thursday that gave them sole possession of first place in the NL East.

New York improved to 9-4 against the Phillies this year, after going 6-12 against them last season and losing the final eight meetings.

Eric Bruntlett, subbing for Jimmy Rollins, had three hits for the Phillies, who rallied for an 8-6 win in the series opener against New York but struggled to score after that.