Huntsville, Saturday, May 7. A warm day but not oppressive. Sent on detail with Corporal Knapp outside picket lines after poles and brush to protect horses from the sun. Passed the infantry picket and cavalry videttes three miles from camp. While out on the hills, in the thicket, a party of guerrillas fired into our cavalry, wounding a captain about half a mile from here. Two were taken in citizen’s clothes. The prevailing idea is that they will be shot. I cannot hope so, although it would be but just retribution for the massacre of Fort Pillow.