Watertown - Mr. John D. Mehigan, of Watertown died Friday, February 8, 2008 at Mount Auburn Hospital, Cambridge. He was 43. Born in Waltham, John was a lifelong resident of Watertown and a 1982 graduate of Watertown High School. He had been the former owner of New England Tire Company in Waltham. In his spare time he enjoyed hunting, fishing and Nascar racing. John leaves his parents, John J. and Susan J. (Peacock) Mehigan of Watertown; his sister, Susan A. Spagnuolo and her husband, David, of Newark, Delaware; his niece and nephews, Christopher, Patrick and Sydney Spagnuolo and. many aunts, uncles and cousins. Relatives and friends are invited to attend the Funeral at 9:30 a.m. Thursday from The Joyce Funeral Home, 245 Main Street (Rte. 20), Waltham followed by a Funeral Mass in Saint Patrick's Church, 212 Main Street, Watertown at 10:30 a.m. Burial will be private. Visiting hours are Wednesday from 4 to 7 p.m. Memorial donations may be made to The Gathering Place, 3 Common Street, Suite 3B, Waltham, MA 02451.