Harel Hershtik pose for a photograph at his labs in Rehovot, Israel, Wednesday, May 11, 2022. When he was 20 years old, Hershtik planned and executed a murder. Today, he is the brains behind an Israeli health-tech startup, poised to make millions of dollars with the backing of prominent public figures and deep-pocketed investors. (AP Photo/Ariel Schalit)