TRIPOLI, Libya -- The son and heir apparent of Libyan leader Moammar Gadhafi, Seif al-Islam, resurfaced free and defiant early Tuesday a day after rebels claimed to have captured him, boasting in a bizarre reappearance that his father's loyalists still control parts of Tripoli and would crush the rebellion.Seif al-Islam's sudden – even surreal – arrival at a Tripoli hotel where foreign journalists are staying threw the situation in the capital into confusion.