The Mountain Meadows Massacre

The killers left 17 orphans, and appointed a group of men to take them to Jacob Hamblins ranch several miles away. The impression of watching their parents die was stained into the memories of the children, some as young as 4 years old, and many of them were later able to recall with horrifying detail the faces of the men who murdered their families.

You dont forget the horror and you wouldnt forget it either, if you saw your own mother topple over in the wagon beside you with a big red splotch getting bigger and bigger on the front of her calico dress, Denton quotes one unidentified survivor.