The alleged gunman in the July 4 mass shooting in Highland Park, Illinois is charged with seven counts of first-degree murder. Police say the suspect used a “high-powered rifle” in the shooting that left at least seven dead and dozens injured. Alexander Sandoval was at the Independence Day parade with his son, younger brother, girlfriend and her daughter when they heard the gunfire. He tells Anderson Cooper how he put his son and brother in a dumpster to keep them safe while he went back to find the rest of his family. Plus, the House select committee investigating the January 6 attack on the Capitol has announced their seventh hearing for July 12. Democratic Rep. Zoe Lofgren is a member of the committee. She joins AC360 to discuss the investigation and whether or not the panel could make multiple criminal referrals to the Department of Justice. To learn more about how CNN protects listener privacy, visit cnn.com/privacy