I use midpoints and midpoint pictures in my astrology like the famous German schools. I have scanned many murder charts, and Mars/Uranus/Pluto is a common signature. That may form as Uranus aspecting Mars/Pluto, or Mars aspecting Uranus/Pluto, or Pluto aspecting Mars/Uranus.
Many people with such a picture in their chart are not killers, but many charts of killers have the Mars/Pluto/Uranus picture.
Mars/Pluto/Saturn is a variation on this theme. Mars/Pluto/Neptune may be involved in assassinations. Mars/Pluto/Saturn is also common in suicides.
Less often, a picture accentuating Mars/Pluto may be found, like Sun/Mars/Pluto.
In this chart, Uranus conjuncts the midpoint of Mars/Pluto. Venus is opposed to Saturn suggesting potential callousness, and Venus squares Uranus/Neptune.
We don't have the birth time, so Moon is not reliable, and the angles would be a critical factor to see here.
Mary was diagnosed as a psychopath at her young age. She claimed her prostitute mother allowed her clients to use her in their sessions. She showed remarkable coldness and detachment at two years old.
http://https://images.saymedia-content.com/.image/c_limit%2Ccs_srgb%2Cq_auto:good%2Cw_250/MTc0MDIyODgwOTE5OTU0NzM5/murderous-children-mary-bell.webp