AH's trial is becoming more complex as charges against former accessories, Wallace and Ortiz have been upgraded to Murder.
SI Legal analyst Michael McCann correctly points out that the main goal of the prosecution is force Wallace, Hern's right hand man to turn against him as the ante is upped to life imprisonment for murder vs. 7 year's for accessory. However, the risk is complicating the trial by either trying 3 at once or 3 separate trials. The possibility with this strategy is no one is found culpable if Wallace does not agree to turn state evidence in return for a deal.
Up to this point Wallace has resisted all attempts to squel on Hern. Will the possilbility of life imprisonment be enough to motivate him? I hunch he is a very cool character who is not easily frightened by the DA (who is acting either more smartly or desperately depending on how you view it). Obviously, they are going to make Wallace an "attractive deal" as they did previously with Ortiz but is he too loyal to take it? Furthermore, this trial could get pretty wild if 3 defendants are tried at once and each has vastly different accounts of the events! What would a jury do in that case?
Furthermore, do not expect any trial to commence until at least Spring 2015 or later if 3 separate trials is the route.