Police have released a photo of a 'person of interest' in the fatal stabbing of a Trenton man.

Richard Clark, 51, was found stabbed to death Monday in his Mill Hill home. Authorities are continuing to hunt for clues, but have released photographs of a woman identified as a person of interest. The photographs were taken from surveillance video at the Trenton train station.

Neighbor Richard Johnson says he was surprised by Clark's death.

"I didn't think that would happen in Mill Hill," he says. "I didn't think that sort of thing was going on."

Clark's death was the fifth murder in Trenton this year.