Your links do not support your statement. While the wikipedia article mentions some armed presence, it clearly puts that as a response to outside right-wing violence. No mention of is made of an "rifle-wielding “security team” assaulted journalists, intimidated residents, and murdered an unarmed black teenager" in either article. There certainly have been some unfortunate shooting deaths in the area at the time, but not much is known about either the perpetrators or their motivation.