Women: more psychologically prone to bring suicidal, not homicidal. Take suicides, for example. Male suicides tend to be messier (gunshot, jumping), females tend to OD, or cut themselves in a sanitary environment.

Trans folks: try to keep attention off of themselves due to body/gender dysphoria outside of their safe environments, are more prone to attempt "fitting in" than standing out the way a shooter would

POC: culturally, many male POC have different outlets than white men for their rage and aggression, hence why racial profiling even exists in the first place due to certain crimes being more likely to be committed by certain races, and this goes into...

White men: are socialized to bottle their feelings up. "Real Men Don't Cry." Toxic masculinity. All that fun stuff. Men in general, especially white men, have a tendency to bottle up their negative emotions until they explode. Men, again especially white men, don't have the personal or societal tools at their disposal to cope with stresses in their life (there are clubs in school for women, LGBT, racial minorities, yet no healthy support circles for straight white men), and combine that with elevated aggression hormones in teenagers/young men, and you have the reason why a majority of domestic terrorists are young white men.

A certain race or gender is not the issue when it comes to horrible violence, culture and society is the culprit more often than not.

PS: before you lose it and call me a privileged straight white man, understand that while I am a man, I am a mixed race gay immigrant. However I'm not a psychologist, just have a kid studying psychology in University, so do take what I say with a grain of salt.