Patrick Crusius, the suspected gunman behind the murder of 22 people in a Texas Walmart store, is reported to have posted a racist rant on the forum just prior to the attack

Fredrick Brennan says he sometimes regrets setting up unmoderated message board in 2013 that is now home to extremists, misogynists, conspiracy theorists

Gunman had posted racist 'manifesto' to message board; Cloudflare head says site's 'lawlessness has caused multiple tragic deaths'