(Time.com) - In retrospect, it's easy to see the evidence that Tucson, Ariz., shooter Jared Loughner was mentally unstable. In his community-college classes, he would laugh randomly and loudly at nonevents. He would clench his fists and regularly pose strange, nonsensical questions to teachers and fellow students. "A lot of people didn't feel safe around him," a former classmate told Fox News.
Given these facts and the horrific turn of events at a Safeway supermarket on Jan. 8 that left six dead and 14 others injured, including Representative Gabrielle Giffords, who remains in critical condition, could anything have been done to prevent the violence? What signs that trouble lay ahead were missed? What signs were observed but ignored? In short, what can be done to prevent a potentially ill or unstable person from harming others?
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