[Kite]

Yeah but if someone is accidentally shot, it's not considered Homicide but Manslaughter...so depending on why the person did it (chances are they would pass a teenager with manslaughter, due to undeveloped mindset) it could be counted as Voluntary Manslaughter...

Voluntary manslaughter cases where the defendant may have an intent to cause death or serious injury, but the potential liability for murder is mitigated by the circumstances and state of mind. The most common example is the so-called heat of passion killing, such as where the defendant is provoked into a loss of control by unexpectedly finding a spouse in the arms of a lover or witnessing an attack against his or her child.

There have been two types of voluntary manslaughter recognized in law, although they are so closely related and in many cases indistinguishable that many jurisdictions do not differentiate between them.

Provocation. This is a killing caused by an event or situation which would probably cause a reasonable person to lose self-control and kill.
Heat of Passion. In this situation, the actions of another cause the defendant to act in the heat of the moment and without reflection.

...most people in these situations go in with an intentto kill but according to Psychs they would never do it intentionally because the teenage mind is not fully developed, many plead Insanity to escape the penalties, or they may get away with just psych counciling. Another back-up of the 'manslaughter' case is this...

Most countries allow conditions that "affect the balance of the mind" to be regarded as mitigating circumstances. This means that a person may be found guilty of "manslaughter" on the basis of "diminished responsibility" rather than murder, if it can be proved that the killer was suffering from a condition that affected their judgment at the time. Depression, post-traumatic stress disorder and medication side-effects are examples of conditions that may be taken into account when assessing responsibility.

...Depression is usually what causes kids to bring guns or other weapons to school, things such as teasing or social status cause many cases of this. So a student bringing a gun to school can get no more than (MOST CASES) than coucniling and most likely will not be sent to prison unless they actually come in and point it at someon, threaten them and then blow their brains out (and that's if it is more than one person they do that to). If it is accidentally there is a guarentee of no jail time for minors.