Authorities are revealing new details about their investigation into a deadly school shooting in Minneapolis. The shooter visited the church weeks before the shooting and apparently conducted surveillance there, according to a Minnesota official and a federal law enforcement source with knowledge of the investigation. "CBS Evening News" co-anchor Maurice DuBois has more. Hundreds of current and former CDC employees gathered outside the agency's Atlanta headquarters in a show of support for top officials who have either quit or been fired. Skyler Henry reports. In just over a week, there have been at least 16 swatting hoaxes targeting colleges across the U.S. The latest alarm came at the University of Pittsburgh. Scott MacFarlane reports there is growing fear that a hoax could lead to very real danger. For more than 75 years, listeners have been loyal to America's first all-Black radio station. For 42 of those years, they've been loyal to host Bev Johnson. James Brown reports. 

Despite a record number of people traveling this Labor Day weekend, airlines are operating smoothly for the most part. Out of roughly 46,000 flights scheduled Monday, there were less than 100 cancellations nationwide. Meg Oliver reports. Police say a group of kids was ringing doorbells as part of a prank in Houston, Texas, late Saturday night when a man came out and fired several rounds at the children as they ran away. One 11-year-old boy was killed after being hit multiple times in the back. Karen Hua reports. Chicago officials say they're hearing it will be days, not weeks, before National Guard troops like the ones patrolling Washington, D.C., arrive in their city despite their objections. Nancy Cordes reports. Rescue workers are searching for victims of a 6.0 magnitude earthquake that struck eastern Afghanistan in the middle of the night. More than 800 people were killed. Elizabeth Palmer has the latest. Phoenix is doing some innovative improvising to help cool the city's homeless. National environmental correspondent David Schechter reports.