Mass Murderers

In an earlier post i talked about how deranged one had to be to actually kill another individual, and what must be going through their head at the time. This left me wondering a couple of things, What's the difference between a mass murderer, and a serial murderer. Here are some of my findings on mass murderers, i will continue at a later date on information about serial murderers.
Mass Murderers are as different as their killings, and as diverse as their reasons for killing. Whether it's spousal betrayal or the loss of a job. Expects say most people who embark on a catastrophic even that triggers a suicidal rage and an unquenchable thirst to get even is a shared characteristic. Mass Murderers think someone else is to blame, but their own death is a virtual certainty, and they want to take as many with them as possible. Most mass murderers before they die, feel it's very important for them to get some satisfaction, to get even with the people or the institutions or even the world that has treated them so badly or made their life so miserable.
Experts believe that mass killers fall generally into these categories:
1.) People who are angry at a specific person or group of people.
2.) People who are angry at a place or a group and they kill anyone who happens to represent those things.
3.) The rarest type, people who target victims at random, (UT sniper in 1966 who killed 16 and wounded 31)
Typically, mass murderers have no criminal record or history of psychiatric treatment.In many ways, there are warning signs of impending attacks that go unrecognized or ignored, however, it is virtually impossible to know that someone bent on suicide has decided to take others with them.
Could the media be to blame for some mass murders? For some murderers that are on the edge sometimes all it takes is that being highlighted int he media for them to go, "You know? I could do something like that, I'm THAT ANGRY". Its all over the place, right in their face, whether it be by television or in print, and could influence their thinking pattern.
My next post will be information focusing on Serial Murderers so their is a comparison