Gregory Koukl is a Christian Apologist who has a unique perspective on Evil that you may find interesting, Rob. It is relevant to this topic because it comes from the worldview of a creationist.
The full article can be found
here.
In a nutshell, what the crux of his argument is is this:
STR writes:
The first step in answering the problem of evil is this: We've got to get clear on what this thing "evil" actually is. It does seem to follow that if God created all things, and evil is a thing, then God created evil. This is a valid syllogism. If the premises are true, then the conclusion would be true as well.
The problem with that line of reasoning is that the second premise is not true. Evil is not a thing. The person who probably explained it best was St. Augustine, and then Thomas Aquinas picked up on his solution. Others since them have argued that evil has no ontological status in itself.
Let me give you an illustration to make this more clear. We talk about things being cold or warm. But coldness is not a thing that exists in itself; it has no ontological status. Coldness is the absence of heat. When we remove heat energy from a system, we say it gets colder.
"Cold" isn't a thing. It's a way of describing the reduction of molecular activity resulting in the sensation of heat. So the more heat we pull out of a system, the colder it gets. Cold itself isn't being "created." Cold is a description of a circumstance in which heat is missing. Heat is energy which can be measured. When you remove heat, the temperature goes down. We call that condition "cold," but there is no cold "stuff" that causes that condition.
Same thing with a shadow. Shadows don't exist as things in themselves; they're just the absence of light.
Evil is like that. Evil isn't like some black, gooey stuff floating around the universe that gloms onto people and causes them to do awful things. Evil is the absence of good, a privation of good, not a thing in itself.
So donut holes don't exist; they're just the absence of donut. Shadows don't exist; they're just the absence of light. And evil doesn't exist; it's just the absence of good.