So O'Mara decided to drag this thing out for year and prepare for a costly and risky trial rather than simply filing a motion for dismissal last April?
Is that seriously the argument you're making?
With your "rather than" statement, are you implying that the pre-trial hearing wouldn't also be "costly and risky"? As the burden is on the defense at the pre-trial hearing, and that burden being the relatively steep "preponderance of the evidence" standard, there is nothing "simple" about that. In fact, the pre-trial hearing, with the burden being on the defense, might actually cost the defense
more money, if a greater number of experts are needed to be hired to argue to that elevated standard. Much of the exact same evidence that the defense would/will present at the jury trial would have been presented at the pre-trial hearing as well. The biggest difference is that there is a much greater burden on the defense in proving self-defense, and zero burden on the prosecution to prove any crime was committed. It's my understanding that only the prosecution has the power to present any of GZ's previous statements (interviews, reenactment, etc.) in court. In order for the defense to argue GZ was justified in using self-defense, especially to the preponderance standard, it's going to be awfully hard to do so without presenting GZ's story of what happened. The prosecution won't need to present any of GZ's statements to police in an effort to prove he committed a crime, they will only need to present it if it seems to support that GZ did NOT act in self-defense. That's going to leave the defense with rather slim pickings, if they're left with much of anything, as far as GZ's statements, and thus his story, goes. With that said, GZ would most likely have to take the stand. Anything he says on the stand can be used by the prosecution at the jury trial against him; they'll be able to twist it in whatever manner they desire to assist them in getting a guilty verdict, and that's quite risky. I'm unsure whether or not the defense can volunteer those same statements at the jury trial or not.
Re: April: O'Mara took over the case on April 11th of last year, so I don't imagine ~19 days would be sufficient for a lawyer to review ALL the evidence. When did the discovery portion of the case even start? It's clear that in April, O'Mara wouldn't have had all the evidence the prosecution had (a year later, they still don't), but did they have
any of it at that point? No one is going to seriously put all the blame on O'Mara for "dragging this thing out for a year". The prosecution's seemingly intentional delays with regards to sharing their portion of the discovery evidence with the defense has accounted for a significant portion of that "dragging out" process.
Back to the original link I shared:
http://blog.richardhornsby.com/2012/04/who-was-the-first-aggressor/
My purpose for sharing that link was to share a "Criminal Lawyer's" input on how to determine who was the aggressor, sufficient/insufficient provocation, and disproportionate force. I wasn't attempting to create an argument about the current state of this case, as that blog article was written/posted on April 21st of 2012, but the generalities he goes over regarding the previous things I mentioned are still relevant today.