 There were many registered groups and individuals that actually didn't even show up. One day after its march in downtown Milwaukee, a coalition of protest groups says its activity in the city is coming to a close. Meantime, investigators are trying to figure out how Thomas Matthew Crooks accessed a roof in Pennsylvania and fired shots at a rally for Donald Trump, injuring the former president. One person at the rally and the gunman were killed. Here's the AP's Julie Walker.