The entire comment. The topic is fearing for one’s life and defending oneself with a gun, and this guy basically says that it’s right to fear for your life because someone might be mentally ill. Comment again so you don’t have to scroll up:
Directly quote the part that makes the claim that at any level the point in which you fear for your life is correlated with the idea that they “might be mentally ill”. That was never said, nor would it matter if it was, because fearing grave injury or death is the determining factor, not any other.