SPOILER ALERT!
Seduction in Death [J.D. Robb]

This is one of the few of these that I remember. The start of the book (with Eve's nightmare and her missing Roarke) was familiar but it wasn't until the book goes to the suspects POV that I really remembered this book.
I don't have that much to say about this book, aside from how disturbing it is that two twenty somethings can be that callous. It was all a game to them. The first death was an accident, but the others were planned.