 who's now working for Democrats in vulnerable districts, ABC's Mary Alice Parks. She said, put your head down and do the work. She said, my guy had a heart attack. You stay on message, you do the work, you continue to draw a contrast with Trump. That's at least their game plan for now. Police looking for a motive in a mass shooting yesterday in Crete, Nebraska. They say a neighbor fired a shotgun from his house and hit seven people at the house across the street, including four children. Police say they found a shotgun near the body of Billy Booth, 74 years old, and that he apparently shot himself.