The analogy:
In my example the guy on the street perceives the driver as committing a crime. He observes him driving too fast, towards him. It takes not much to interpret that as a "lethal attack" (driving too fast is a crime, driving somebody over is a lethal attack).
It is exactly the same scenario as the rape thing in terms of logical conditions. The father enters the room, perceives the rapist as committing a crime. He observes him harming his daughter. It takes not much to interpret that as a "lethal attack" (raping is a crime, turning around and marching towards the father might well be a lethal attack).
The point is, that in both cases ALL the "judgement" is done by one person, a person who, given the short time and the circumstances is almost certainly not capable of neutral logical judgement. These are examples to demonstrate points, they are not real situations. Quite obviously there is always room to twist them, but that's not the point.
To the "broke my law" guy:
Your law does neither count nor matter. You are citizen of the United States of America, thus bound by the rules, laws and principles of same country. If you decide that you don't like them then you have three options:
a) vote against them and accept if you are beaten by the opposition.
b) leave the country and go to a place with rules that you like more
c) break them and be punished for it
Those are your choice, there are no other ones. And executing somebody is a case of c)
To the "my neighbour got shot":
That's a terrible thing. Yet, I would encourage you to put your faith into the system. If the steps taken by the legal system do not satisfy you, then feel free to vote for a party that tries to change the legal system. That is your duty and option as citizen. It is NOT your option to by pass the legal system. Doing so will simply make you a criminal as well.
One of the standing stones of the US is the right for equal treatment. that is, the guy who killed your neighbour has a right to be treated just like a guy in the other corner of the US committing a similar murder. And granting everybody this right requires that the judgement is made by people who are aware of the options for punishment. Otherwise you might judge and kill the guy, while the other fellow miles away gets a big handshake from the town because everybody in it thinks that is was a "cool" kill (stupid example, but you get the idea).
Finally to all the folks who see this as the only alternative:
My lady just came back from Haiti a few weeks ago. She goes down there all the time and each time I live in fear for a while. Haiti is likely the worst place to be in north america. Exploided first by the europeans, then by the americans, then dropped in the garbage bin. The country is the poorest on the continent, every 7th person has HIV positive and the only export produce they have nowadays is drugs. The government is dictatorial, the social system (including health, welfare, education and law) is non existent. People live in "clans", protecting each other. Lynch justice is common as sand on the beach. Seldom a night goes by without gunshots being heard. People raid, steal and kill during the day in the middle of the crowd. In the night only private militia groups keep a few parts of the country quiet. Each time I go there I feel like stepping into a big nightmare. Yet, my lady goes all the time, every few month she spends several weeks down there. Doing political work, radio speeches about democracy, about birth control, about health issues, setting up shelter for the homeless, teaching the kids in the villages how to read and write, etc. During the last years she has been kidnapped twice, robbed more often then she can count, shot at from afar, her uncle has been executed by militia (Jean Dominique, he was the foremost public speaker for democratic elections on haiti, there are still a few articles about it out there on the web), her aunt has been raped and then killed a few years ago. Friends of hers are constantly being attacked. She doesn't carry a weapon, she actually refuses to have any protection from weapons, bodyguards and clan militia. The first time we went together I was terrified, I called her insane, asked her, begged, that she would never go again, or at least surround herself with all kinds of bodyguards. Back then she told me that she could easily do that. But that it wouldn't make her any better than all the others. she told me that she tries to set a little thing in motion with her work, but more important, she tries to demonstrate that there IS another way to live. A civilised way. Nowadays when she goes I am still afraid, but I know that she is setting a sign. There are several people like her out there. I met a lot of them once during a conference. They are a kind of modern missionary without religion (the church on haiti consists of a few poor priests in the countryside with no support whatsoever and a big fat bishop sitting in a huge palace like village surrounded with one of the largest militia groups on the island). And slowly, ever so slowly, small things are moving on haiti.
There IS another way, a way that demonstrates that we are more than just brutal animals.
cheers
Helge