BUGLIOSI, Vincent (1934-2015) and GENTRY, Curt (1913-2014). Helter Skelter. The True Story of the Manson Murders. New York: W. W. Norton & Company, Inc., [1974]. 8vo. Illustrated. 502, [6, blank] pp. Publisher's black cloth backstrip over gray boards, spine stamped in gilt, publisher's unclipped (?$10.00") dust jacket (cloth spine a bit rubbed, faint rubbing to boards, faint tape residue on fp.; jacket with creased tear on rear panel near upper joint, some rubbing, toning to jacket). Still, fine. FIRST EDITION, SIGNED BY BUGLIOSI AND GENTRY ON THE FFEP. The definitive account of the crimes and trials of the Manson Family, and the best-selling true crime book in history. From the renowned personal collection of Dr. George D. Lacy. Measurements: 9 ? x 6 ? x 2".