One Last Lie — Sarah Sutton

Women are being brutally murdered in Boulder, Colorado, their bodies stuffed into the trunks of their cars, and they all have one thing in common: they were meeting someone for a date that they met online. It's clear a serial killer is at large, and FBI Agent Tara Mills is quickly on the case. But she soon learns that none of the women were meeting the same person, or so it seems, because none of the victims' dates can be tracked down either.

As Tara digs deep into the world of online dating, and as more women turn up dead, she soon realizes that the killer's web is larger than she ever imagined. With the killer always one step ahead, taking on a new identity and leaving no trail, Tara fears she has finally met her match.

Tara is pushed to her limits. But with the secrets of her past finally resolved, she hopes she can finally lay it to rest and focus wholeheartedly on the case. But when she learns that her biggest nightmare is yet to come, she fears that she has only made things worse for herself, for her fiancé, and for their future.