CSI NY Blood on the Sun by Stuart M. Kaminsky
When three members of the same family are found brutally murdered in a house in Queens, Mac Taylor and Danny Messer's initial investigation points to a disturbing suspect: the family's own 12-year old son. Meanwhile, in a west side synagogue, Stella Bonasera, Aiden Burn, and Don Flack investigate the murder of a devout Jewish family man. The victim has been ritually crucified, and a cryptic message related to the mystical practice of Kabbalah is found at the scene. But Kabbalists do not condone murder of any kind... Curious cases both with unlikely suspects - and only the CSI: NY crime investigation team have the skills and the tenacity to uncover the truth.