And what if it turns out that the killer had no more (or less) motivation than Leopold and Loeb?
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What if he did it simply because he was a thrill seeking gambler, and became bored because mere gambling had become stale?
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What if he did it simply because he was bored and wanted to try a different thrill?
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What if he did it just because guns are so readily available in the US, and the opportunity was so easy.
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What if he did it, simply because he could?
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What if he wasn't mentally ill, at all, but just turned out to be the present-day version of Leopold and Loeb?
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The legislators who failed to vote for gun control have blood on their hands.