There is no record of the exact number of people killed, because no one was ever convicted of the killings. There is no record of the exact number of people killed, because no one was ever convicted of the killings. The last one occurred during the 1860s, when Americans were still using horses to commute to work  and a great deal has changed technologically since then. It certainly wasn't taught in local schools. I have seen systems collapse.
Everybody is exactly aware of the number of people killed.
( z0 realize :ARG0 ( z1 everybody ) :ARG1 ( z2 number :quant-of ( z3 person :ARG1-of ( z4 kill ) ) ) :mod ( z5 exact ) )
(z0 / realize-01
    :ARG0 (z1 / everybody)
    :ARG1 (z2 / number
              :quant-of (z3 / person
                            :ARG1-of (z4 / kill-01)))
    :mod (z5 / exact))
Everybody is exactly aware of the number of people killed .
z0 :mod z5
z0 :ARG0 z1
z0 :ARG1 z2
z2 :quant-of z3
z3 :ARG1-of z4