MINNEAPOLIS — Robin Westman, the person who authorities said opened fire at a Minneapolis Catholic school Wednesday morning had the last name of the Abundant Life Christian School shooter written on their gun.

A video originally uploaded to YouTube, appears to depict Westman showing off their weapons, which are covered in writing. One of the guns appears to have the name "Rupnow" written on it. The video has since been deleted from YouTube. The CBS News Confirmed team verified the video.

It is unclear if the guns seen in the video were the ones used in the shooting.

Law enforcement also confirmed to CBS News in Minneapolis that Westman posted a video with a manifesto, which has since been deleted.

Authorities say that two children, ages 8 and 10, were killed in the shooting. 17 Annunci

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