Two Plattsburgh men have pled not guilty to murder charges lodged against them for the stabbing death of Keeseville resident Kenneth Darrah earlier this week. The Adirondack Daily Enterprise reports 48 year old Michael J. Rougeau and 30 year old Michael A. Nastasia were charged with second-degree murder on Tuesday for allegedly stabbing Darrah, 37, and throwing him off the AuSable Chasm Bridge in the town of Chesterfield.