This is one of my all time favorites. How do I find the words to describe this, perhaps just a few quotes from Wikipedia:

Olga Hepnarová (30 June 1951 – 12 March 1975) was a Czechoslovak mass murderer, who on 10 July 1973, killed eight people with a truck in Prague. Hepnarová was convicted and sentenced to death, and was executed in 1975, the last woman executed in Czechoslovakia.
I am a loner. A destroyed woman. A woman destroyed by people... I have a choice – to kill myself or to kill others. I choose TO PAY BACK MY HATERS. It would be too easy to leave this world as an unknown suicide victim. Society is too indifferent, rightly so. My verdict is: I, Olga Hepnarová, the victim of your bestiality, sentence you to death.
Was she born with a desire to kill or did society drive her to it? You will find yourself asking the same question by the time you finish the movie.

https://www.imdb.com/title/tt2953762/