A 16-year-old from Plymouth was treated at St. Joseph Regional Medical Center in Marshall County after he rolled his sport-utility vehicle Monday morning. Michael Slitter was northbound on Pine Road north of 5th Road and lost control of his 2003 Chevrolet Blazer, according to a news release from the Marshall County Sheriff’s Department. The SUV landed on its top. Slitter told the officer he swerved to avoid hitting a deer.