Are verbal threats n being aggressive a reasonable legal grounds for a citizen to use lethal force?
Let's have a different scenario since the perpetrator had no idea if the person was homeless or had prior.
What if I take a bad batch of drugs or am too drunk and act like this in a subway? Is it reasonable for these to be a risk I may be executed by a member if the public for scaring people? I think it's quite a slippery slope myself.
Do I think people should travel the subway unsafe? No.
Do I think murdering hobos is justified for being scared? Also no
Oh I get what you are saying with the drug part of, it also could make you got even crazier and if you are attempting to subdue them based upon that and they continue to struggle and fight it coukd be worse. I have also seen people on drugs need the use of a tazers (i used multiple because it took 4 or 5 to stop them from hurting another person).
I have no clue what this guy that was killed had or if he was on anything other than becoming verbally aggressive, towards others and who could become a danger to other you don't know and I don't know. We also don't have all the info because the media in our country sucks, lies and manipulates every story to suite their needs and to sow discourse to all instead of just giving the facts anymore.
I may have spoke to soon also the guy was a former military guy and if he saw service anywhere seeing that coukd have taken him back to war and defending others. My Grandfather was in Korea and everytime he fell asleep and we tried to wake him up he thought he was there and he almost killed my Uncle when he tried to wake him up.
We don't have all the information and I may have spoke out of turn, but if he felt he was helping save others from something that could have looked worse from his POV could be it too, not sure.