UnitedHealthcare CEO assassin believed to have left a message at the scene on bullet casings: report

New evidence suggests that the suspect who killed UnitedHealthcare CEO Brian Thompson on Wednesday may have left a message behind on the bullet casings at the scene.

Police sources told the New York Post that the words "deny," "depose" and "defend" were written on the live rounds and casings left behind by the assassin after the shooting.

Evidence also shows that each bullet and casing had just one word written on it leading them to believe he may have been trying to leave a message, sources said.