Complex sentence: The Hawks' former home The Omni was demolished on July 26,1997, so they had to play their home games at the Georgia Dome, and their former home the Alexander Memorial Coliseum (also home of the Georgia Tech Yellow Jackets at the time).
Split into simpler sentences: The Hawks' home The Omni was demolished on July 26,1997. So they had to play their home games at the Georgia Dome, and their former home the Alexander Memorial Coliseum (also home of the Georgia Tech Yellow Jackets at the time).