 in the suspected shooter's background. They're looking for anything online that might give them a hint about motive. So far, they believe he acted alone and that there is no additional threat, but they're working to confirm that. They also have found no links to any kind of organized terror group. They're still looking to see whether he may be linked to any kind of domestic extremism, but they're not quite sure yet. In the crowd at that rally, one person killed, two others critically injured during the shooting. President Biden is now back at the White House after cutting short his weekend in Delaware. The White