Philly's shooter was hell bent on hurting people

A gunman who went on a shooting rampage through the streets of Philadelphia Friday night, killing one person and wounding three others including a police officer, was "hell-bent on hurting lot of people," the city's police commissioner said today.

The suspect, identified by investigators as Nicholas Glenn, was eventually cornered in an alley and fatally shot by police.

During a press briefing Saturday afternoon, Philadelphia Police Commissioner Richard Ross Jr. said Glenn, who police believe was around 25 years old, had "a pretty significant past" and "was well known to the police department." The suspect is believed to have acted alone and there's no indication so far that he had been radicalized.

"He was hell-bent on hurting lot of people," Ross told reporters. "We still aren't absolutely clear as to why.