James Barber, 4, of Youngstown, dressed as a flight commander …

Special to The Vindicator | published: October 30, 2018

James Barber, 4, of Youngstown, dressed as a flight commander for NASA, pets Mercy, a nine-year-old Belgian Malinois police dog, while his dad Andrew Barber, left, stands by during the trick or treat event at Covelli Centre on Tuesday. Mercy will be retiring from duty at the end of November. EMILY MATTHEWS | THE VINDICATOR