That looks similar to:
https://www.amazon.com/Serial-Killers-Method-Madness-Monsters/dp/0425196402
which a co-worker loaned to me and I read a few months ago.
The spectrum of abnormal psychology is quite wide.
I am quite curious to know: What it is about Trump that is attractive to you?
The book I mentioned doesn't go into serial murderers, but it's a fascinating book because it's filled with the personal anecdotes of the writer. He used to work with prisoners. It's pretty illuminating and I imagine the knowledge in that book would be pretty helpful if you get entangled with someone that might be a psychopath.
The thing I appreciate the most about Trump, is his willingness to face political storms in order to do what is necessary. Most people can't appreciate the mental fortitude you need to tell inconvenient truths that large sections of society depend on being unspoken for their livelihood (welfare, military contracts, government contracts, regulatory protection, public employment, social services). When people tell me they dislike Trump, I may think less of their intellectual abilities, but if they can't even think of one positive thing to say about his character, then I know they are fundamentally untrustworthy. People who live by moral convictions will be familiar with the fallout that comes from doing so in a nihilistic culture.
Donald Trump is incredibly brave. It should serve as a civilizational omen that he is so hated. By the time a great civilization collapses, the values people held have inverted;
- Bravery => Meekness
- Boldness => Appeasement (bread and circuses)
- Sexual prudence => Normalizing deviant sexual behavior
- Virtue => Flattery/vanity
- In-group preference => Out-group preference
- Aspiration => Apathy
- Man-oriented => Woman-oriented
You don't have to trust me about that. The United States have around 210 trillion dollars in unfunded liabilities, which amounts to around 1.5 million dollars per taxpayer, and there are similar financial situations throughout Europe. That would be unmanageable even without an aging population. Older generations are consuming public services that they never paid for, despite inheriting booming economies, asking their children to pay for them in contracting economies where they have terrible job security. This doesn't even take into account that the next generations are likely to be less productive, as the Welfare state is paying people with Employment-Resistant Personality traits to have more children, and taxing productive people, so they have fewer.
If you add immigration to this, it looks even worse for most of Europe. Immigrants from Africe, the Middle-East and South-America consume welfare services disproportionately, pay less taxes than the host population and have more children. European politicians believed immigration would alleviate the burden of having an aging population below replacement rate, by supplying more taxpayers. However, immigration in total has been a net cost.
Then you can add in the fact that populations with more diversity, have less trust and more crime. It turns out that having different ethnic groups in close proximity leads to wars (the Middle-East, Southeast Europe). This might explain why the generation born after the 2000's is the most conservative generation since the second world war. By coming in contact with more people from different ethnic backgrounds, they are being programmed to have a higher in-group preference and low disgust tolerance.