A disgraced hero, a ritualistic cult, a comet

It's July 2020 and the comet Neowise will streak across the skies of Los Angeles tonight. Saul Davis doesn't need his psychic powers to know this is a bad omen. While investigating a zodiac symbol painted on a roof, he and his best friend, LAPD Officer Lonnie Shepherd, discover the meeting place of an astronomically inclined cult. What would it take for a serial killer to convince this following to murder? Perhaps, simply a sign from the heavens. This is the fourth fascicle of the Zodiac Rising serial novella.