NEW HAVEN, Conn. — A Massachusetts man has pleaded guilty to forcing a woman into prostitution and threatening her child if she went to law enforcement.Federal prosecutors in Connecticut say 25-year-old Mohamed "Vic" Abdi, of Worcester, Massachusetts, pleaded guilty Wednesday in federal court in New Haven to conspiracy to commit sex trafficking by force, fraud or coercion.He faces up to life in prison at sentencing scheduled for July 27.