Recent US political violence aided by DIY murder tradecraft available on internet

People locators, 3D weapon blueprints, tactical planning - all accessible on the web for potential attackers or terrorists

A rash of recent assassinations have brought on congressional scrutiny and concern among law enforcement agencies who are wary of an age of political polarization turning deadly.

But experts say the violence is as much a byproduct of the times as it is the easy accessibility to DIY murder tradecraft, evident in some high-profile slayings of late.