his right hand and went under oath to answer a dozen yes or no questions. >> is it your decision not to have a pretrial immunity hearing? >> reporter: after a couple break and strategy sessions, it became official. >> after consultation -- >> reporter: zimmerman waived his right for a pretrial immunity hearing where a judge could have dropped the charges if she felt stand your ground defense applies. o'meara explained the reasoning -- >> the reality is we have made a tactical decision how to handle this case. george wants this case before a jury of his peers. >> the decision does not change the overall strategy at the defense table. they still claim zimmerman, a neighborhood watch volunteer, shot unarmed trayvon martin in self defense. the most talked about trial since casey anthony is now less than six weeks away. >> reporting from sanford florida. once the trial begins his attorneys may ask for a stand your ground hearing. a jury would have the final say, not just a single judge. zimmerman by the way has gained 110 pound since that shooting. it was an a emotional day for michael jackson's mother