CBS Evening News with Norah O'Donnell, 05/23/23

A CBS news investigation has found evidence of mass murder by a Russian mercenary army that is responsible for some of the bloodiest fighting in Ukraine. a security threat near the white house, when a Missouri man attempted to drive a rented box truck into a barricade last night. According to court documents, the suspect told secret service agents that he planned the attack for six months, with the intention of taking control of the white house and killing the president or anyone else that got in his way.