Looking for a name: Learned about General in History Cl. Part of a m macre against Native Americans?

I Learned about General in History Cl. Part of a m macre against Native Americans. I am thinking he was at wounded knee but not sure. The quote my history teacher referred to was that when the native american people huddled under american flag, a military official asked if they were to kill the women and children too. This general, or military official response was "Maggots grow into flies" WHO WAS THIS? Having discussion here among friends. I said that for me this was my greatest A-HA Moment in American history about how sad the east coming to the west really was. Any idea who said this? Looked at Wiki and I couldn't find the answer I am thinking I remember.