I have been doing neighborhood watch for several decades now. In that time I have learned what works and what does not work.
I have done it armed, and unarmed, CCW, and OC, middle of the afternoon, and late at night.
In my experience Z made a lot of mistakes.
His first mistake, in his case, was patrolling alone. He was not cut out to do this kind of work alone.
His second mistake was patrolling around the dinner hour. Everyone is home around the dinner hour so very little crime ever takes place then. Criminals are not stupid.
His third mistake was patrolling in the rain. Criminals do not like to get wet, same as the rest of us. Whenever it rains the criminals are usually in a warm bar someplace drinking it up.
His fourth mistake was profiling T.M. just because of his clothing and race. This caused him to completely overlook the possibility that T.M. was indeed staying or residing in the neighborhood.
His fifth mistake he freely has already admitted, that he misjudged T.M.'s age and though T.M. was actually older, not realizing he was a juvenile instead.
His sixth mistake was getting out of his car, which served as a safe cocoon for him as it would for anyone else.
His seventh mistake was pursuing T.M. This is a violation of T.M.s privacy and civil liberties.
His eighth mistake was getting into a confrontation with T.M. without properly backing off and away. We don't know what started the fistfight, but I would be willing to bet T.M. would not have mixed it up with a polite person.
His nineth mistake was shooting center mass. Of course that is what all the NRA classes teach novices, and Z was a novice for sure. Still it was a huge mistake.
He probably made quite a few more mistakes that we still don't know of.
Lying to the judge about his financial resources was his most recent mistake.
It never ends with this guy.
Whenever your mistakes lead to the death of another it is normally adjudicated to be manslaughter. We will have to wait and see how the actual trial goes.
The police were initially told not to charge him. That cost their police chief his job. That was the second casualty in this drama.
I would not be surprised if Z's freedom and right to keep and bear arms becomes the final casualty.