The Serial Killer Test: Biases Against Atheists Emerge in Study
Most people around the world, whether religious or not, presume that serial killers are more likely to be atheists than believers in any god, suggests a new study, which counters the common assumption that increasingly secular societies are equally tolerant of nonbelievers. Avowed atheists exhibited the same bias in judging sadistic criminals, the study found.
The new report, appearing in the journal Nature Human Behaviour, included more than 3,000 people in 13 countries, both secular states like the Netherlands and Finland, and deeply religious ones like the United Arab Emirates and India. The findings suggest that, despite declining attendance at churches, mosques and temples in many communities, the cultural tenet that religion is a bulwark against immorality remains intact, experts said, even in those who deny it explicitly.
Previous studies had found evidence of broad-based public suspicion of nonbelievers in smaller samples within religious countries, like the United States. The new survey suggests the findings may extend globally, and it finds that the same kinds of suspicion pervade even highly secular societies.
“What’s exciting about the paper for me is that it’s a great first step,” said Richard Sosis, a professor of anthropology at the University of Connecticut. “They’ve got a method that can be used to see how this bias plays out not just in judging a sociopath, but for many more mundane moral violations.”
https://www.nytimes.com/2017/08/07/health/atheists-religion-study.html?smid=tw-share&_r=0
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But unfortunately the only ex-con I know was an atheist who served two terms for counterfeiting. He was amoral and unrepentant, sorry only that he was caught. 
Out of many, he is the only amoral atheist I know.