Who Killed The Bad Boys?

Five bad boys go to Western High School. They have been friends since they were little. They survived high school now up to 11th grade.
But something horrible is happening: they are being killed, one by one.
They struggle to find out who the murderer is, but as they do, they become suspects themselves.
Where do they turn? Who is next? And who is doing the killing?

( btw the book has nothing to do with the Magcon boys, they were just for the video)