Everything you say makes sense, if Zimmerman were charged with manslaughter. Then her’s could be a necessary if ignoble quest to avoid riots and save Florida’s legal system from infamy. Except she charged him with murder 2, and there is no excuse nor rationalization for that other than that she is under enormous political pressure and wants to pressure Zimmerman into pleading to a lesser charge, and/or is stupid and vain enough to think he’s actually guilty, can prove it, and wants to grab the glory for herself.
There are lots of potential tricks involved.
One is called “overcharging”. This allows the DA to look tough, demanding a life sentence for jaywalking, but it looks very unreasonable to a jury. It just isn’t supported by the evidence.
If they really want someone in jail badly, they will “undercharge” them, to get the opposite effect, and to insure they don’t walk.
The DA probably doesn’t want a plea, because that can be a lose-lose for them, making them looking weak, yet unfair, to both sides.
One trick that Zimmerman doesn’t have to fear at the state level, but might if the case goes federal, is “enemies that pretend to be friends.” If the feds really want you to go down, they will try to trick you into dismissing your local attorney, to instead take on some “nationally renowned defense attorney”.
These “celebrity attorneys” just suddenly appear, and fools think they will do a better job than the local attorney. But the truth is that they just make the defendant *think* he is getting a great defense, while they throw his case.
“The defendant was convicted on all counts and faces life in prison, but his celebrity attorney proclaimed ‘a great moral victory against the system.’” A fine lot of good that does the defendant.
Attorneys, both prosecution and defense, live for these tricks of the trade.