Thank you to all who commented. I really appreciate the comments and insight. Both seem to be popular for different reason. So as an experiment I've tried merging the best bits together to make a brand new blurb. Its risky and it sometimes works, if it doesn't get mostly thumbs up I think I will probably go with blurb two.
Deadly Sin - Blurb 3
When months go by with no more notes, Cassandra hoped her stalker was gone for good.
But he returns on the heels of a gruesome murder, that Cassandra is at odds to solve when she's blocked from all sides and castigated for her methods.She knows the police cannot stop this killer.
Her stalkers desire grows stronger every day. He wants her all to himself and people will die if he can't have his way.
She can't ignore the threat or how he entices her with the possibilities of knowledge about herself. How does he know so much? And will finding out be worth the price?