Having been young, once in my life I can say beyond question that Music/music video and computer games are a top influence to a young person.
Combine that with a trend to remove God, Country and Family from schools and you have a bad enviro for young people.
The "Gangsta Rap, Cop killin, and Satin Worship" music we have today
sets the stage for what is happening.
When you glorify criminal behavior in Movies and Music, a tree surgeon can understand what the effect on society will be.
I may also add it is because of this, that it is so important for good citizens to be able to have personal protection
along with a host of other reasons.
Of course the tidal wave of drugs from Mexico and criminals from every nation on the planet does not help any. If you have lived in a full sized city in one of the more international states and regardless of if gun ownership is legal or not you know you need a gun in your home to protect life.
God Bless and good Luck to all.