No one except Z knows what happened that night, which means we may never find out. A court will decide if he will be deemed to be guilty of a crime.

For me, that has never been the issue. The issue is the SYG law and the fact that a "blockwatch volunteer" was armed. An armed blockwatch volunteer is a vigilante. Being a vigilante is illegal, and there seems to be no doubt that Z was being a vigilante at the time of the killing.

Is it legal for a blockwatch program to have an armed component?

Is the gated community that Z was blockwatching for going to get in any trouble for establishing their own untrained police force?

Have the SYG laws ever been tested in a higher court?

Is it possible to sue the people who paid for the SYG law over this? If not, why not? What about the legislators who voted for it?

I'm a big believer in taking personal responsibility for your actions, and anyone who thought about it for one minute should have known that an SYG law would lead to this mess. In an obviously non-legal sense I think there are a lot of Florida legislators and a governor who are guilty of murder.