What happens to the souls of people who have commited suicide?

Ok I know that when people p on they either become angels or ghosts and whatnot. I believe in ghosts and angels. Long story short, I had a friend that committed suicide a couple years ago. He was 18. I didn't know him too well but I knew he was a loner. I became friends with him recently before his death and I really liked him. I developed a crush on him. I didn't know much about his home life but I had seen him in school. One day, when I was in school, I was looking for him and didn't see him in the cafeteria as I normally would. The morning announcements announced that he had killed himself. The whole day I was like it's not that Jeff. It's somebody else. But once I got on the bus my friends said did you hear about jeff. That's when I knew it was him. I spent most of my time talking to him on the bus. The day before this, I saw him on the bus. He had headphones on and was staring straight ahead. I asked him what was wrong and he said nothing. That was the last time I saw him. Then the next day at school, I got the news. My question, my point really, is what happened to his soul when he died? I've heard people say he could be in heaven or hell or he could be in limbo as a ghost. Can anyone tell me which one it is?