The only criterion I used was "murders that, despite being ideologically charged, did not cause the government or media to tar any associated movements, ideolog

The only criterion I used was "murders that, despite being ideologically charged, did not cause the government or media to tar any associated movements, ideologies, or people with it". I don't find this very convoluted. Another point of difference is I merely gave examples - I did not claim the murders were more or less heinous because of some detail of the crime or perpetrators, such as the presence or absence of mental illness, planning, a manifesto, etc..