What can i do to protest the death penalty?

I've been doing some entense research about the death penalty and i am disgusted how this country decides to put people to death by means of electricution, lethal injection and gas chambers i think this punishment is cruel and very very wrong i cant lie though i do know of people who have killed in my family although it happen why i was in California before i was born but what good is it to kill one and cause another family pain if one family has already put up with i've tried amnesty they wnat money and right now i cant afford to pay but i reall really really want to do something for this cause please please help asap