A bulletin put out by the Maine Information and Analysis Center, a database for law enforcement officials, said Card was a trained firearms instructor and was believed to be in the Army Reserve.
It added that law enforcement said Card “recently reported mental health issues to include hearing voices and threats to shoot up the National Guard Base in Saco, ME.”
The bulletin said Card was reported to have been committed to a mental health facility for two weeks this summer and then released. NBC News has not been able to independently verify the bulletin’s statements about Card’s history.
https://www.nbcnews.com/news/us-news/lewiston-maine-shooting-robert-card-what-know-rcna122262

The Gun Control Act (GCA), codified at 18 U.S.C. § 922(g), makes it unlawful for certain categories of persons to ship, transport, receive, or possess firearms or ammunition, to include any person:
who has been adjudicated as a mental defective or has been committed to any mental institution;

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