Dirty secret: The common link among all the mass-killings of the past 20 years in the US? Guns? No. The common link was that the attackers were either taking - or had recently stopped taking - prescription psychotropic pharmaceuticals (anti-depressants, anti-psychotics, anti-bipolar, anti-anxiety medication). Read the product insert of these medications, and you'll find: suicidal ideation, homicidal thoughts, violent outbursts, psychotic breaks, disconnection from reality, reduced inhibitions. Why don't you hear about this common link? Because pharmaceutical companies are the biggest sponsors of our mainstream media. Biting the hand that feeds them? Never.