So, it is the case again. Social media companies are facilitating the mobilization of radical and dangerous groups. Just over a week ago, neo-Nazis took to the streets in Germany to demonstrate and intimidate any outsiders or immigrants. Following the stabbing and death of a 35-year-old at a festival in the Chemnitz City Center, rumors began making the rounds on social media websites that the perpetrators were migrants. Quickly, these rumors manifested into anger, centralized and focused on one group: refugees. The demonstrators caught police on their heels, harassed journalists, targeted counter-protestors and injured at least two people.