I want to first of all say that my heart goes out to the families that have lost some one in the recent shooting. I can only imagine the pain that families feel when they lose their child in a place that they thought was safe. It probably only triggers ugly memories of past school shootings.
"A wide-ranging survey of 169 schools in Hamburg, Germany, tried to discover the causes of rising aggression at institutions of learning. Why are schools reporting extortion, intimidation, bodily injuries, and sex offenses with increasing frequency? According to the newspaper Frankfurter Allgemeine Zeitung, the pupils surveyed cited violence in the media, neglect at home, and stress at school as the main reasons. The survey also pointed to a number of social factors that impeded the solving of problems of violence at school. For instance, it was found that children and youths commonly lacked an awareness of guilt or wrong and were very egocentric, intolerant, and inconsiderate. And many parents regarded the use of violence to resolve conflicts as normal and were teaching their children to strike back and defend themselves." - Awake
NWT 2 Timothy 3:1-5