I probably mentioned it before already, but very good book on the Marion Parker murder case is "Stolen Away: The True Story of California's Most Shocking Kidnap-Murder," by Michael Newton. I think it's out of print, but I'm sure it's available at public libraries. I bought my copy used on amazon; the book was published in 2000. It's pretty detailed, and even gives addresses. I became really obsessed with the case when I found out that the murderer lived briefly in Alhambra, and that while he held Marion Parker captive, they actually went out and saw a movie together at the Rialto Theatre in South Pasadena, which is right near me (and closed a few years ago).
amazon.com
I have another book that has a picture of the dismembered Marion's body at the LA County Morgue.