I feel really stupid for asking this,but how exactly should I be there for a friend in their hour of need?

My friends Dad passed away the morning before Fathers Day. I only know this friend through one of my best friends who I am very close with and its her boyfriends Dad who passed away. The guy is a wonderful person,he is the kind of person that would do anything for you and never ask for anything in return. But I don't know his family at all and I've only known him for three years (even though when we did get to know each other we discovered that we only lived two minutes away from one another in the city area we are in). Today his father is in his home before the service on Thursday. His girlfriend (my close friend) knows that I'm not good around the display of people in open coffins,so when I rang her the other day she said that it would be fine if I didn't show up to his home because she knows this. So I'l go to the service on Thursday to show my friend that I am there for him. Is it offensive that I live so close to him and not show face in his home today,I feel really sick thinking about it. I know this sounds very petty,but I am extremely uncomfortable in this situation,even if I did show face I'd feel like an outsider,and I know that my friend is surrounded by his family and close friends of his own,so that he'l be okay. I know that this situation is most definatly not about me,I wouldn't try to make it about me,but I can't help feeling like this. Please be sincere in your answers,I'd greatly appreciate any advice. Thank you.