Whoa whoa whoa, wait wait wait...what does being protestant have to do with this?..It's unclear from your comments. Unless you're just sharing your aunt's religious discrimination at random. Were you trying to say that this kid wasn't a good Christian? I don't care one way or the other but if you brought it up because you do care then I'd think you'd want to be a "better" Christian and therefore you should have gone to his funeral, thought as much good things you could about him, maybe even tried to understand that he was a troubled person (bullies often are) and prayed for his family.
I understand having resentment towards him...but then why were at his funeral? If the answer is, "because it seemed the right thing to do" then Imma refer you to last sentence in the paragraph above.