Answer:
Do not use the phrase I am here today to convince you in your thesis. Say the death penalty is utterly immoral and should be abolished forever because...
I like your hook with the two questions. Your use of vivid language is great. Death causes crime, it’s a catastrophe, it’s immoral-- I think this should be deleted. In addition, try using more transition words. Lastly, you use a lot of questions may limit the amount of questions used. Good call to action at the end too. May consider a circular endeding too.
Try using the Hook Context Thesis method.
I would reword it like this.
Do you believe in the old saying “an eye for an eye”? Or do you believe instead that “an eye for an eye makes the whole world blind”? A majority of 60% of states in the United States agree with using “an eye for an eye” or otherwise known as the death penalty. However, the death penalty is utterly immoral and should be abolished forever because...(your reasons simplified) (Transition word) The death penalty is murder, plain continue with your speech.
Sorry for my lack of time I can just read the first paragraph. Good luck! And don't take me too seriously i'm only in 7th grade you probably have more developed/advanced writing than me.