
http://www.flcv.com/violence.htmlThree studies in the California prison system found those in prison for violent activity had significantly higher levels of hair manganese than controls(61,37), and studies of an area in Australia with much higher levels of violence as well as autopsies of several mass murderers also found high levels of manganese to be a common factor(37,134b,115a). Such violent behavior has long been known in those with high manganese exposure.
