Law enforcement update on Trump assassination attempt

On Saturday, former President Donald Trump was shot during a campaign rally in Butler, Pennsylvania. Authorities say two people were critically injured and one person (other than the shooter) was killed. Authorities say they are working to identify the shooter using biometric information and DNA. The scene is still considered 'active' as authorities continue their investigation, and police say there are still "some concerns," that they cannot discuss until more investigation is completed. Authorities promised another press conference with updates, but did not confirm when that will take place. This is a developing situation.