Murder across the ocean

"Seventy-year-old American widow Lori Brill thought she'd have an uneventful vacation in London visiting her granddaughter, Cate. At the airport she ran into Josh, her high-school boyfriend. This resulted in an unexpected night of passion in a London hotel. Lori was all smiles as she stepped out of the shower the next morning, until she saw Josh's bloody corpse lying in the bed. Scotland Yard's inspector Geoffrey Holmes, American FBI agent Jordan Gould, and Lori's granddaughter Cate and Cate's fiance Joseph are among the team on the case. Who killed Josh? Was it Lori? Was it his beautiful girlfriend Suzi? Was it Josh's Chinese financial business backers? Was it British mobsters who kidnapped Lori in an attempt to find Josh's hidden millions? Or was it someone else?"--From publisher description.