The Nightmarish Online World of 'Gang-Stalking'
The internet creates an echo chamber for delusions and conspiracies.
What we know about the Baton Rouge gunman and the 'sovereign citizen' movement
Before he attacked police officers in Louisiana, gunman Gavin Long expressed interest in a black offshoot of the typically white anti-government movement.
Photos show Baton Rouge gunman shooting at police with assault rifle
Louisiana authorities said there's no question gunman Gavin Long "intentionally targeted and assassinated" police in Baton Rouge on Sunday.
What We Know About the Baton Rouge Police Shooter
Gavin Eugene Long, also known as "Cosmo," was a former US Marine connected to a fringe political movement.