A new detail released by police investigating the murder of Vanessa Marcotte could be key to finding her killer.
"This is a very critical piece of information," said Tom Shamshak, a former police chief.
Now a private investigator, Shamshak has visited the crime scene and reviewed the information released publicly by police.
Wednesday, Shamshak said they revealed significant new evidence — a car. Authorities said they are looking for a dark-colored SUV that witnesses reported was parked near where Marcotte's body was found on Aug. 7.
"That could link the crime scene to an individual," Shamshak said, "Start with the automobile. Do they remember a plate number? Was it in state, out of state?"
Marcotte, 27, was in Princeton to visit her family for the weekend. She left her mother's home on Brooks Station Road to go for a walk, but never returned. Her body was found in a remote, wooded area a 1/2 mile away later that evening.
Authorities said state police detectives and local police have already received more than 1,000 tips through a dedicated tip line.
"It's a diabolical crime that was perpetrated by somebody who thinks they've gotten away with murder," said Shamshak.
Anyone with information regarding men who had access to a dark-colored SUV on Aug. 7 and were in or around Princeton is asked to call (508) 453-7589.