One of the differences between the U.S. and Australia, was that after the Australian media got what they wanted with extreme gun control, they stopped promoting mass gun murder.
http://www.class.org.au/ideas_kill.htm
In the U.S. the media continues to make celebrities of mass murderers.
http://gunwatch.blogspot.com.au/2018/02/the-media-has-blood-on-its-hands-in.html
“One of the differences between the U.S. and Australia, was that after the Australian media got what they wanted with extreme gun control, they stopped promoting mass gun murder.”