J. C. Barnes, Brian B. Boutwell, Kevin M. Beaver Death Studies http://www.tandfonline.com/doi/abs/10.1080/07481187.2012.738769#.U0a8Q8dgNss 2014 Date Sat, 06/14/2014 - 02:43 PM Research Types Environmental Influence Genetic Influence Gun Ownership Kevin M. Beaver Twins
