As many have said. The details of this story will surface but for fucks sake what don't people understand about "Stand your Ground". It's fucking simple, don't approach me with anger, if you do, don't get withing arms length+ of me, if you have a serious issue that demands attention call 911, or security, or the manager and let them handle it. We need to grow up and start acting civilized and that's what "Stand your Ground" is trying to do. If you act like a Neanderthal you'll be shot and killed, end of story.
Also would like to revise the story to have a different ending........Popcorn gets thrown in the old mans face, old man reacts by raising his arms in a defensive reaction tapping the guys face, guy reacts with a right cross straight to the chest of the old man, old man falling and later dying of cardiac arrest(????because his pacemaker failed on impact of the punch?????). Everyone would be saying if he had a gun he would not have died. Sooooo damned if you do, damned if you don't.
Point is, why even get to that point. You're in a theater and you're not alone, behave yourself, respect others as you would have them respect you. Someone approaches you about doing something you know is wrong, admit your wrong, STFU and enjoy the movie........or be a douche and get killed over it. Think of it like this........"Everyone" is carrying, so your MMA training, Golden Glove boxing, Brazilian JiuJitsu competing ego is only going to get you killed!!!!