A scientist specializing in infectious diseases, Jen works with a cutting-edge research group on three national COVID-19 clinical trials. After a day battling microscopic pathogens, she enjoys spending her evenings taking on hostage takers and serial killers. She is the author of the NYPD Negotiators thriller series; the second book in the series, SHOT CALLER, releases in September 2021. With Ann Vanderlaan, she writes both the FBI K-9 series (as Sara Driscoll) and the Abbott and Lowell Forensic Mysteries. Book six of the FBI K-9s, UNDER PRESSURE, releases in December 2021.