The Nitrogen Murder — Camille Minichino

Retired physicist Gloria Lamerino is back in her old stomping grounds, Berkeley, California, to attend the wedding of her best friend. But the joy is short-lived when the shooting death of an emergency medical technician is connected to the woman's fiance, Philip Chambers. The missing link is a duffel bag picked up by the EMT as she arrived in the emergency room with her fatally wounded patient: a scientist developing highly classified research on nitrogen. The dead scientist was Philip Chambers's colleague. Now, the bag -- and its contents -- are missing. And so is Chambers.

Aware of the dire consequences of weapons grade nitrogen falling into the wrong hands, Gloria fears the worst as she tries to piece together a conspiracy that threatens national security, her best friend's happiness and her own ability to stay alive.