Title: The onion field
First published: 1973
Subjects: Case studies, Gregory Ulas Powell, Jimmy Lee Smith, Karl Hettinger, Murder, Nonfiction, True Crime, Hettinger, Karl, Campbell, Ian James, 1931-1963, Powell, Gregory Ulas, Smith, Jimmy Lee, Agriculture
Places: California, Los Angeles
People: Gregory Ulas Powell, Ian Campbell (1931-1963), Ian James Campbell (1931-1963), Jimmy Lee Smith, Jimmy Lee Smith (d. 2007), Karl Hettinger, Karl Hettinger (d. 1994)