On November 28, 2009, following a divorce and an episode of severe depression, James Kahler drove to a family gathering where he shot and killed his ex-wife, two daughters, and their grandmother. At trial, he was convicted of four counts of first-degree murder. Despite Kahler’s history of mental illness, the defense was barred from using the insanity defense because Kansas state law denies its use when criminal intent can be proven.

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