I am asking because I honestly don't know the answer. Do "authorities" in Maine have the ability to do anything? What you are talking about are (sometimes referred to as) Red Flag Laws. Not everywhere has them. The guy's family could have notified authorities and the authorities were powerless to do anything about it. Minnesota, where I live, just passed a version. We call it an Extreme Risk Protection Order (ERPO) here. There are still a lot of unanswered questions about how law enforcement will seize guns, what to look for, how to store them, how to avoid vindictive (unwarranted) abuse of the law, etc. The list goes on and on. The legislature thought they were acting to avoid "the next Lewistown" situation but did not think through how it will actually be implemented.