Does the Existence of Moral Evil Disprove the Existence of God?

In this blast from the past, J. Warner Wallace examines another aspect of the classic "Problem of Evil". Why would an all-loving and all-powerful God allow people to commit horrific crimes? Doesn't He have the power to stop these kinds of crimes? Doesn't He care enough about us, as potential victims, to stop them? Do examples of moral evil demonstrate that God doesn't exist?