William S. Harney's the bastard who hung 30 members of the Saint Patrick Battalion in the Mexican-American War during the Battle of Chapultepec. He even had it down the minute the American Flag flew over the castle.
O.O. Howard served under Harney in Florida in 1857. Here's what he wrote home about him:"The old Genl. is most terrific in his anger. He is impatient, no reasoner, jumps at conclusions, rather self-willed but continually shifting his tactics."
Hanging deserters was illegal at the time, and my point is that what he did was sick, besides one of the deserters had both his legs blown off. The only reason they deserted was because they were being wrongfully oppressed by their prejudice superiors.