BIDDEFORD — The death of a Biddeford man Monday in a parking lot off Route 111 has been ruled accidental, police announced Tuesday afternoon.

Maine State Police have concluded its investigation into the death of 31-year-old Mathew Perry, who died Monday afternoon after being struck by a pickup truck in the parking lot.

Steve McCausland, spokesman for the Maine Department of Public Safety, said in an email Tuesday that the case has been turned back over to the Biddeford Police Department after the Chief Medical Examiner’s Office ruled that Perry’s death was accidental.

McCausland said the medical examiner determined Perry died of “blunt force trauma to (the) head and chest caused when (the) pedestrian fell to the ground and was run over by the vehicle.”

State and Biddeford Police responded to a call of a possible hit-and-run situation at about 3 p.m. Monday in the parking lot between Play It Again Sports and Biddeford Savings Bank.

By 5 p.m., the scene was swarming with police, medical technicians and news media. Units from MSP and the Biddeford Police Department’s Crime Scene Unit and Street Crimes division investigated the crash scene as well as surrounding areas as the victim lay shirtless on the pavement.

Employees of the sporting goods store said they heard a loud noise, such as that of a car speeding, before they looked out to see Perry laying in the parking lot. An employee said the store’s security footage had been turned over to police, and that it showed a possible dark or black truck racing past the screen.

What is believed to be the same truck was pulled over on Green Street near downtown Biddeford later Monday evening by Sgt. Brian Mills, said Deputy Police Chief JoAnne Fisk.

The driver, who is not being identified, is cooperating with police, Fisk said Tuesday. The truck has been impounded, and will undergo further investigation.

State Police said Tuesday they believe Perry and the truck’s driver engaged in an altercation prior to the accident. Fisk could not confirm that an altercation occurred, but said BPD is still in the process of investigating the sequence of events leading up to Perry’s death.

It’s also unclear if Perry and the truck’s driver knew each other prior to Monday’s incident.

McCausland said Tuesday that Perry had been released from Southern Maine Medical Center – where he was taken for an unidentified “ailment” – earlier in the day Monday. That hospital is located adjacent to the parking lot where he later died.

Fisk said the situation is not being formally labeled a hit-and-run at this time. No charges had been filed as of Tuesday.

A GoFundMe account to help pay for Perry’s funeral, set up by his relatives, indicates he leaves behind a 14- year-old son.

— Staff Writer Alan Bennett can be contacted at 282-1535, ext. 329 or abennett@journaltribune.com.