City medical examiners are trying to determine what killed a 4-year-old boy at a family homeless shelter in East Flatbush. Plus, a new order from New York State's housing agency could have big implications for tenants paying water bills in rent stabilized apartments. Also, Mamma Mia! returns to Broadway this summer, after a ten-year hiatus. And finally, state health officials say there are two confirmed cases of measles in New York City. This comes after an outbreak of measles in Texas, where there’s over 100 cases.