6-year-old, parents shot in Gaston County; police search for gunman

[Hieronymus Phact]

28. Disclaimer: I'm not any type of medical professional.

If my theory is true, they would be blindly lashing out, not over territoriality, that's just the trigger.
It's the Narcissistic Injury that's causing them to lash out. I think looking at the various triggers and possible influences is helpful in broader context, but for my theory it's simply overthinking it.

Narcissistic injury is experienced by narcissists when they receive any kind of criticism. This includes any critique that a narcissist perceived as a slight even if it wasn’t meant that way. Injury also occurs when a narcissist is faced with judgment, is held accountable, or when boundaries are placed upon them. The narcissist often reacts with anger and rage once an injury is inflicted on them.

Grabbed that off some web site, the Injury described is on trump but his followers are experiencing it too, they are the ones lashing out. Reason has nothing to do with it.