Emergency crews remain on the scene of a partial building collapse in the Bronx after a 20-story ventilator shaft gave way at the Mitchel Houses. Officials are also investigating a potential gas leak. Meanwhile, New Yorkers who receive state rebate checks of up to $400 will need to pay federal income tax on them next year. And Open House New York returns in October with its biggest weekend ever, offering access to 341 normally off-limits locations across the city. WNYC's Ryan Kailath has more.