The Connecticut Medical Examiner has asked to sequence and study the DNA of the recent Newtown shooter. I’ve been seeing this pop up over the last few days on a lot of popular media sites, where they mention some objections scientists (or geneticists) may have to this “scientific” study. But I haven’t seen the objections explicitly laid out anywhere. So here are mine. Ignoring the fundamentals of the genetics of complex disease: If the violent behavior of the shooter has any genetic underpinning, it is complex.