Tate acknowledged that Manson holds a prominent -- and grisly -- place among mass murderers.

CNN: Charles Manson to have parole hearing, but he may not attend

Mass murderers tend to be middle-aged men who see themselves as victims of injustice.

CNN: In rampages, it's about revenge

But without America on side, the ICC stands little chance of bringing mass murderers to justice.

ECONOMIST: No conviction | The

Honest men will be able to effectively defend the innocent against would-be mass murderers.

FORBES: To Protect The Innocent, We Need More Guns In The Hands Of Honest People

But it's a mistake to view mass murderers as incomprehensible freaks of nature.

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The director of the funeral home in Worcester, Massachusetts, likened the task to burying notorious mass murderers from recent US history.

BBC: Burial wrangle for Boston suspect Tamerlan Tsarnaev

To begin with, while it's true that all but a few mass murderers have been men, the twins cherry-pick their examples and simply ignore nonwhite killers.

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What really causes mass murderers to commit their crimes?

CNN: Why the media cannot ignore the killer

The Mental Health Bill will create misconceptions in society that people with mental health problems are mass murderers when the reality is that they are much more likely to harm themselves than others, hence discouraging them from getting the help they need.

BBC: NEWS | UK | Wales | 'The NHS in Wales has to change'

However, several high-profile gun-toting mass-murderers were people who apparently suffered from seriously under-treated mental illness.

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