Maybe she should check out the internet.

Blake, who was appointed by President Bill Clinton, wrote that she was not convinced that assault rifles such as the AR-15 are used regularly for self-defense. She wrote that they seemed to be "military style weapons designed for offensive use."

It's not hard to find examples such as here, here, here, here, here, here, and here. All it takes is a little due diligence. Sounds like a judge who has let her personal bias inform her decision.