Quickly skimmed figures in the paper. It seems that if you remove Catholic European countries from the data set, correlation could disappear. However, I person

Quickly skimmed figures in the paper. It seems that if you remove Catholic European countries from the data set, correlation could disappear. However, I personally think that the paper is still on to something. A few weeks ago after reading some article I was skimming through murder and suicide rates by country and it looked like there could be an inverse correlation there, but I haven't had time to study it yet.