Should I be convicted for defending myself with pepper spray, if the person died because of the effects?

A person who I had believed was a good friend of mine stole $100.00 from me. I didn't realize it until I pulled out of his parking lot. I came back to retrieve thinking maybe it was some kind of mistake and he had become hysterical. I carry sabre pepper spray for protection because I am black woman who's been through a lot. It's only for self defense. Well anyway, I seen that he had become hysterically angry with me for thinking that he would still from me. So I walked out to my car to search for the 100 dollar bill, but as I opened my car door he tasered me again in the stomach again with his stunt gun (not mention I am also pregnant). Instantly my reaction was to grab the pepper from my car and gas his *** with it. The entire time while I was trying to good shot at his face, he was continuously stunning me with this stunt gun in my stomach. Then his drug addict girl friend comes towards me to help him fight me. I seen her running towards me with a rock from the corner of my eye, so I took my attention off him, grab her by hair, punched her in the face and as she hit the floor I maced her too. I tried to get away from them by getting back into my car, but he proceeded after me, this time trying to brake my car window with a chair and still stunning me again. I just got into my car because I just wanted to get the hell away from there. Two days later my girlfriend calls and says that some one (detective) calls her saying that the young lady had died from inhalation. I don't know if this is true or not, but they tried to jump me after stealing $100 from me. If this young lady did die do you think that I should be convicted. All of this was out of self defense. They thought that they were gonna rob and beat my ***, but they had another thing coming for them. Instead they were layed out on the ground burning but they still have my money. The only money I had to my name. What should I do. And don't you think that I was wrong. But if she did die I give my condolence to her family. Because the guy was white and the woman was indian I may be charged because of the color of my skin and because of my criminal background of being a drug dealer over five years ago. What should I do?