BOSTON (AP) _ The Suffolk district attorney says a body found fatally stabbed on an East Boston beach on Labor Day was that of a 15-year-old boy.

District Attorney Daniel Conley identified the victim on Tuesday as Wilson Martinez of East Boston.

Conley said a man walking near the East Boston Yacht Club on Constitution Beach at 8 a.m. saw Martinez's body along the waterline.

Conley said ``no piece of information is too small to be helpful'' as state police investigate the teenager's death.

Anyone with information is urged to call investigators at 617-727-8817.

State police assigned to the district attorney's office are investigating. They have jurisdiction on the beach, which is state recreation land.