Bob Herbert addressed this in an October 2006 New York Times editorial. Most of these shooters tend to come from two-parent households and have been found to appear on the honor roll at their schools.

With the offenders that can be reviewed, it is hard to even study this as a specific case or issue.

There is not really a specific trait of issue that can be found.

Family circles are all different but seem to come from two parent median households most often and with no records of violence or criminality prior to the event.

Yet, they have this fascination or are prone to violent thoughts and actions.

Synaptic pruning occurs because the nervous system in humans develops by firstly, the over-producing of parts of the nervous system, axons, neurons, and synapses, to then later in the development of the nervous system, make redundant the superfluous parts, i.e.

pruning (or apoptosis, otherwise known as cell death).A school shooting is an attack at an educational institution, such as a school or university, involving the use of a firearm(s).Incidents that involve four or more deaths are also categorized as mass shootings.The majority of individuals had rarely or never gotten into trouble at school and had a healthy social life.Some experts such as Alan Lipman have warned against the dearth of empirical validity of profiling methods.The remaining motives included an attempt to solve a problem (34%), suicide or depression (27%), and seeking attention or recognition (24%).