Originally Posted by pje120

Despite the amount of controversy on questions like this that touch on theology they are usually pretty easily answered with the right approach. For evil's existance:

1) Define evil
2) Observe the world to see if there is any things that satisfy the definition of evil

Quite often when people argue over whether there is such a thing as evil they are really arguing over the definition of evil without even realising it... and it's stupid to argue over a definition since definitions are not universal: they are just made up.

So if you want a real answer, define evil first.