Dad, I am so sorry this happened to you. I can't believe that you're gone. I love you so much and you know that. I know that you loved me too and have always wanted the best for me. Everything you did in your life was for me and I'll never come close to being even half the man that you are. Your love and caring showed no bounds, you were always such a happy person and everyone who ever knew you would certainly agree.
I know that you wouldn't want me to feel so bad, but it's so hard right now just to keep on going knowing I can't be with you. It's always been you and I, together. I don't feel like a whole person anymore. You made such a huge impact on my life and you taught me everything that I know. You raised me and loved me unconditionally through the good times and the bad. You were and always will be my best friend. Thought it might not have always seemed like it at the time, I cherished every moment with you. I hope I can see you again one day, no matter how long that might be. I know that you are in Heaven with your parents and brother and everyone who you've ever wanted to be reunited with. I hope one day you will be proud of who I become.
I'm never going to forget you. Goodbye for now, dad.
I love you.