A day after a bombing injured 29 people in a Manhattan neighborhood, police are scouring the area for clues about who was responsible for the explosion and why it happened. "We know it was a very serious incident, but we have a lot more work to do to be able to say what kind of motivation was behind this," New York Mayor Bill de Blasio told reporters Sunday. "Was it a political motivation? Was it a personal motivation? We do not know that yet." A few blocks away from the blast site, investigators found one possible clue: a pressure cooker, with dark-colored wiring sticking out, connected by silver duct tape to what appears to be a cellphone, officials said. Surveillance video from Saturday shows a man dragging what appears to be a duffel bag with wheels near the site of the explosion on West 23rd street about 40 minutes before the blast, according to multiple local and federal law enforcement sources. Video shows the same man with what appears to be the same duffel bag on West 27th street about 10 minutes later, multiple law enforcement sources said. Read more http://www.cnn.com/2016/09/18/us/new-york-explosion/index.html
