David Carpenter, a native of San Francisco, was physically abused as a child by his alcoholic father and domineering mother.

On May 10, 1988, a San Diego jury convicted him on five counts of first-degree murder in the deaths of Richard Stowers, Cynthia Moreland, Shauna May, Diane O'Connell and Anne Alderson.

[9] Carpenter was sentenced to die in the gas chamber and remains on death row in San Quentin State Prison.

[11] Hansen, who was a University of California-Davis student, has a memorial scholarship dedicated to her in honor of her courage during the attack, which allowed Haertle to escape alive.

[13] In December 2009, the San Francisco Police Department reexamined evidence from the October 21, 1979 murder of Mary Frances Bennett, who was jogging at Lands End when she was attacked and stabbed to death.