Remember, at the end of the first film it was revealed what we were watching was just story being told by some college guy, not what actually happened. Brenda confirms this when she says he didn't tell it right. Because Reese says 8 students were murdered, this would mean that Professor Wexler and Dean Adams were not killed, Natalie and Paul were, so the body count of the first film would actually be

1. Michelle
2. Damon
3. Tosh
4. Parker
5. Radio Assistant (Killed in the background, behind Sasha)
6. Sasha
7. Natalie
8. Paul