A death in Lisbon Falls Friday morning has been ruled a homicide.

According to Maine State Police, firefighters heard a woman scream around 7 a.m. in the area of Main Street.

A man was then seen stepping away from a vehicle and shooting himself in the head. The man, identified as 38-year-old Benjamin Peterson of Pittston, was taken to the hospital in critical condition.

First responders found the body of 30-year-old Kylee Turcotte in the driver’s seat of the vehicle. Her death was ruled a homicide by the medical examiner.

Peterson was previously in a relationship with Turcotte.

The incident is under investigation.