How to deal with this family crisis?

ok so my dad abused me when i was younger both mentally and physically and then up and left me any my family when i turned 12 and i havent seen him since but now i got a call from a aunt who is saying my dad is on his deathbed at the hospital and my whole family is crying over him and saying im a ahole cause i said that i never wanna see him again in my life and i dont care that he is dying and i told the truth that im glad he is daying a slow death from alchoholism and drugs but the problems that he put himself into. but my problem is how to tell my family i will not go see him and that i will not go to the funeral also and how to tell them i do not wish to speak to them