Never Bite a Boy on the First Date

I've got a few issues:

I'm a vampire now.

One of my classmates was found dead, with telltale fang marks.

I didn't do it! (really!)

Nobody believes me, so ... I'm going to have to find the real killer.

I've already got three suspects. (three very cute suspects.)

One more problem:

I am seriously falling for one of them ... but what if he's the killer?