This is another one of those books I'd like to give 3 1/2 stars rather than 4 but can't because of goodreads rating system. I always seem to skim chunks of Gerritsen's books rather than reading all the way through and this is unusual for me - but apparently not when it comes to Tess Gerritsen. Either there's too many autopsies described in WAY too much detail or, in this case, just an element of the case I have no interest in at all and in fact turned out to have very little bearing on the solution to this mystery. The best parts of this book deal with Jane Rizzoli, her husband Gabriel Dean, new baby Regina and Mom Angela. There's very little Rizzoli AND Isles in this book and more interaction between the two would have made a better book as well. The hostage situation was intense and kept me spellbound. The conspiracy theories made me yawn. I'm determined to finish the Rizzoli and Isles series because there's still enough to like about it for me to do so - just hope the remaining books are better than most of what I've read so far.