That's riiculous. Parental control & teaching right from wrong is the key to avoiding mass murderers(in general)However, teens & their parents need to change one thing-time management skills. Watch some of these hardcore gamers play for hours on end is a little disturbing.(oh, like I haven't spent 12 hour on a game.)
this is a little bothersome though-,
, it was found that the computer game only stimulated activity in the parts of the brain associated with vision and movement.
In contrast, arithmetic stimulated brain activity in both the left and right hemispheres of the frontal lobe - the area of the brain most associated with learning, memory and emotion.