Dark Energy.

Dark energy. You can find it in the "observable universe". Found about 75% more than any other substance out there. It can be found in anybody and anything. Religious zealots, politicians, your well doing next door neighboor. To come to the conclusion that so-called "dark" signifies evil or malevolent would kind of define 75% of this universe as a pretty damn evil force. But hey, alternatively, thinking that your all-smiles next door neighbor doesn't have a knife in his pocket or a horrifying secret is to be foolishly unarmed.