gun. >> piers, i don't practice in florida but i have to believe there will be a jury instruction on causation. in other words, if you commit a crime, you have to -- there has to be a causation element proven. in other words, you have to have caused what the crime was. i have to believe these prosecutors are going to look at the jury and say, it's a florida law allows someone to profile someone, disobey police instructions, bring a deadly weapon with them, confront someone, threaten them, assault them and then when they respond, shoot them dead, is that self-defense in florida? ladies and gentlemen, you're going to decide that question. and i suspect it's not so simple. >> let's take a short break. when we come back we'll take a closer look at the charges the jury will be allowed to consider and the sentences that they can carry if george zimmerman is found guilty. based upon your training