CBS News @CBSNews
Federal investigators are trying to zero in on what caused a tourist helicopter to fall to New York's East River. Five passengers who booked that flight the take pictures were killed. The pilot escaped. @krisvancleave has more on the investigation. https://t.co/Etj9uiYXBQ https://t.co/qSHHbfYbTu — PolitiTweet.org