 This huge farm fairground site that was used for Saturday's rally has been almost frozen in time. The investigation continues, and those of us who evacuated had to leave our belongings behind. There is TV equipment, tables, chairs, bags still there. The FBI is leading the investigation. They say they're still trying to figure out the motive, and they say they have searched and brought to their lab the shooter's phone. President Biden spoke out again last night. CBS's Linda Kenyon. He appealed for calm.