Source: Spiegel Online International, August 1
…The fact that lone wolves don’t act nearly as secretively and discreetly as people long thought offers one glimmer of hope for security agencies. In a study financed by the Justice Ministry in 2015, American researchers Mark Hamm and Ramon Spaaij determined that, “Virtually all lone wolves demonstrate affinity with some person, group or community, be it online or in the real world.”
Since the rise of social networks, many supposed lone wolves have left behind digital hints about their plans, which could make it easier to track them before they strike. “If lone wolves announce their violent intentions beforehand, then steps can probably be taken to stop them,” Hamm and Spaaij wrote.