The following is from a taped interview between suspect Edmund Emil Kemper III and investigator Michael Aluffi, held at the Santa Cruz Jail on April 28, 1973.
Aluffi: Ed, you’ve admitted to the deaths of six coeds, your mother and Mrs. Hallett, are there any other homicides that you’ve committed other than your grandmother and your grandfather?
Aluffi: None whatsoever?
Kemper: None whatsoever.
Aluffi: What about in Santa Rosa?
Kemper: No. There almost was a victim there, but I guess pretty much for the same reason I didn’t kill so many others, it was a surprise pickup and quite a lovely young lady, and I just psychologically was not prepared for it. But when I was psychologically in the mood for it and everything worked out right, the person didn’t have a chance, when I knew ahead of time.
Aluffi: But you did pick up a hitchhiker in Santa Rosa?
Kemper: Yes, the deposited her safely. She was probably 16 or 17 years old.
Aluffi: What about Los Angeles?
Kemper: No, I picked up people up and down there for the same reason, only on one occasion, two girls, and I released them at their destination and picked up one girl in Santa Barbara that was headed for Santa Cruz. But at that time, all I had was my knife and I didn’t really see an opportunity to use it.
Aluffi: Did you ever pick up any hitchhikers in Las Vegas?
Aluffi: Have you ever been to Las Vegas?
Kemper: Yes, long, long ago and only by bus.
Aluffi: So in essence, the killings that you have admitted, those are the only ones that you’ve ever completed.
Kemper: I’d love to take credit for more, not because I’m looking for a big score, but that I wouldn’t take credit for any that I didn’t do because, well, there’s partially the guilt factor involved and there also is the uh, well I didn’t do it, so I didn’t get any pleasure out of it or any guilt out of it and why take somebody else off the hook who did do it. Obviously, whoever did these other crimes that haven’t been solved doesn’t have too many clues against him. I’m not trying to pat anybody on the back or help anybody else get away with anything, but I figure I can’t even cop out to these crimes because they’re gonna find out that I didn’t do them and I wouldn’t be able to give you any details, not even under a lie detector test.
Aluffi: Would you be willing to submit to a lie detector test?
Kemper: Sure, as long as it only pertained to any cases that I didn’t involve myself in. You know, there’s always questions people don’t like to sit there and have a lie detector test on concerning other parts in their lives.
Aluffi: But you would be willing to submit to a lie detector test in reference to…
Kemper: Any unsolved murders that you might think I had something to do with, or to verify certain statements I have made concerning the crimes I did commit.
Aluffi: You would submit to the subjects of these coeds deaths?
Aluffi: Do you think you could remember anything else that might be of any consequence in these investigations?
Kemper: Not at this time I don’t.
Aluffi: Would you be willing to talk to me at a later time if you did remember something like that?
Sources: Ed Kemper’s official jailhouse confessions in April 1973 / Photos are from the Santa Cruz Sentinel (for Aluffi) and another unknown newspaper (for Kemper) / Kemper photo by W. H. Hawkins found on Reddit and first published by the Facebook Ed Kemper Discussion page