You're right, he was an atheist who was denounced by the Serb Orthodox Church and is being tried in absentia for Belgrade for murder while he is also being tried in the ICTY for war crimes. He presided over the destruction of his own country and the deaths of a couple hundred thousand people while personally enriching himself through criminal activities as well as by selling arms to Libya and Iraq and being one of the largest recipients of Saddam Hussein's oil bribes.
A few minor little transgressions compared to the good he did.