Nashua country club shooter to plead insanity defense

By: Sruthi Gopalakrishnan

Outlets: Concord Monitor

Published: September 17, 2026

Words: 281

Last Updated: 23 hours, 57 minutes ago


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The man accused of a deadly shooting at a Nashua country club last year plans to argue that his actions were rooted in mental illness.

Hunter Nadeau, 24, opened fire at the on-site restaurant at Sky Meadow Country Club on September 20, 2025. The shooting killed 59-year-old Robert Steven DeCesare, who was dining with his wife and daughter, and injured several others.

Court records filed this week show that Nadeau’s attorneys will argue that “he …

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