Man pleads guilty to 2003 killing of father after 20-year cold case

Douglas Herlihy, now in his 40s, pleaded guilty to involuntary manslaughter and evidence tampering for the 2003 death of his father, Paul Herlihy, resolving a case that went unsolved for over two decades. The plea marks a rare late-stage conviction in a cold case, though details of the investigation and sentencing remain pending.

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