Warren Wagon Train Massacre. On Salt Creek Prairie (1.5 mi. W), On May 18,1871, Kiowas and Comanches from the Fort Sill Reservation, in present Oklahoma, attacked a train of 12 wagons owned by Capt. Henry Warren, contractor of supplies for U.S. forts in this frontier region. Seven teamsters were killed. The chiefs who led the raid were soon arrested, and Satank committed suicide. In a nationally spotlighted trial at Jacksboro, Satanta spoke with great eloquence on behalf of his people. Texas' Governor, E. J. Davis, later commuted the death sentences given by the court. #5721