The problem of evil

My first semester introduction to philosophy was basically a whole year on the idea of free will. 

The concept was used as an ad hoc solution to the problem of evil. If God is omniscient and all good, how do you explain the presence of evil. Well, people have free will. 

I think psychologically I need free will, just to keep equanimity, but philosophically I don't believe in it.

Here is some evil God permitted:

How do you tidy up the evil below?

Unrelated, I just learned: One of the experiments the japanese did during ww2 at unit 731 was cutting off limbs of living, waking people without anesthesia and sowing those limbs onto other prisoners.

They also infected male prisoners with various infectious diseases then forced them at gunpoint to rape pregnant prisoners to see if the disease would transmit to the baby.

Researchers from unit 731 were given immunity by the US in exchange for knowledge gained from their experiments. The Soviets tried 12 for war crimes. The accounts of victims from the trial and elsewhere were labeled as communist propaganda.

Unit 731 facilities are operated as a tourist destination in Harbin, China. The same city that annually gets pics to the front page for it's internationally famous Snow and Ice Festival.

Then there's the German version of that called Operation Paperclip.

Russia had Laboratory No. 12.

World War Two is a pretty good counter example to all knowing, all good God.

In the late 60's in South Carolina, when my mother was in college, people would run out screaming from her philosophy classes that pointed out the problem of evil.