Aaron Katersky was on the scene in lower Manhattan as an estimated 2 million fans joyfully filled the streets for the Knicks' ticker-tape parade celebrating the team's first NBA title in 53 years, and Matt Rivers has the latest on the chaotic scene in Times Square after gunfire erupted just hours after the parade ended; Faith Abbey has details on the severe weather fueled by remnants of Tropical Storm Arthur that triggered flash flood emergencies in parts of the Gulf Coast while a separate