One of the most powerful photographs I've ever seen is this one.

You are about to witness the horrible execution of every person you see inside the pit.

They were among the one million victims of the 1965 communist massacre in Indonesia.

One of the deadliest killings in human history, this genocide is not often discussed, maybe because it did not occur in a first-world nation.

A historical image that serves as a reminder of the killings that have occurred and will continue to occur.