I'm so sorry for the loss of both of your parents. Since it's only been a month, the pain is still very real, I know that. My Dad passed away in April not from a heart attack, but like your Mom, from cancer. It wasn't long and drawn out. It was relatively quick and very unexpected. I was there with him as he took his last breath and it is something that I wish I could forget but it will be there with me forever. It was the most helpless feeling I think I will ever experience in my life. I tell myself that there was nothing that I or anyone else could have done, but I can tell you that as the months have gone by the thoughts of that morning creep into my thoughts a little less. I guess the cliche of "time heals" really does hold some validity. When those thoughts do get in, it hurts and then I tell myself that he's ok and he's in heaven watching over us. When he left, I know that God was with him and he wasn't alone. People tell me that I should be happy I was there, that it's a wonderful gift...I'm still not sure about that, but as time goes by maybe that will change. Do not feel guilty that you could have done something and you didn't!! You did everything you could and you were with him. I'm sure your Dad wouldn't want you to torture yourself. When I feel bad, I talk to my Dad. I know he's there. I hope you find peace. I will keep you in my prayers.