In the Internet age, laws might not be enough to prevent such a tragedy.
Germany is in mourning following a school shooting Wednesday in which 16 people were killed, including the young man – a recent graduate – who carried out the attack. As the country takes stock, politicians are calling for tightened gun laws and pointing fingers at the video games and media for promoting what they see as a culture of violence.
Within minutes of the tragedy, images of police and grieving students covered television and computer screens. Experts say the coverage only compounds the problem that might be helping to sow the seeds of such attacks.
"The amount of attention we're giving this shooting can have an enormous effect on others' thinking about the same thing," says Bernd Holtusen, of the German Youth Institute in Berlin. "People's readiness to use violence becomes greater after a shooting."
Thursday, details on the gunman, Tim Kretschmer, began to emerge. Former classmates say he was a loner, but noted that he hadn't created problems. A diehard table tennis player, he also had a passion for horror films and violent video games – a point that's already prompting calls for tougher gaming measures.
Mr. Kretschmer's access to his father's licensed gun collection has also intensified debate on tightening already relatively strict gun laws. Politicians Thursday rejected the idea of armed guards or metal detectors to schools.
In the province where the shooting took place, some 100 such threats have been recorded in the past two years, according to the Interior Ministry. Experts point to a "copycat" effect and say crisis-intervention teams should be used in schools to look for warning signals.