Crime novelist and true-crime writer Flacco (A Checklist for Murder
) gives the reader a front-row seat in the harrowing Wineville, Calif., murders where, between 1926 and 1928, Gordon Stewart Northcott, with the aid of his nephew Sanford Clark, killed at least 20 people at a remote chicken ranch outside of Los Angeles. The unwilling accomplice Sanford was 13 when he was sent by his parents to stay with his uncle, who continually brutalized and sodomized him while killing a series of helpless boys. Flacco reconstructs the details of the grisly murders, with Northcott's dotty mother, Louise, sometimes joining the bloody mayhem. Eventually, the cops caught up with Northcott and his ritual killings, and he was hung after a sensational trial in which Sanford was the star witness. With a heartfelt epilogue by Jerry Clark, Sanford's son, this well-told tale of senseless killing, guilt and redemption of a young innocent is a page-turner. 16 pages of b&w photos. (Nov.)