When the notorious Macau crime boss known as Broken Tooth Koi is released from prison Saturday after serving nearly 15 years he will hardly recognize the city he terrorized in the late 1990s with a brutal gangland war. Wan Kuok-koi is scheduled to walk free from Coloane Prison in the Asian gambling mecca between midnight Friday and noon Saturday, the Macau government said. Wan was convicted of loan sharking, money laundering and being a gang leader in November 1999, a month before Portugal returned control of Macau, its colony for more than four centuries, to Beijing.