I've been wondering the same thing. It's frustrating to see possible matches and find that some of these women vanished when Alcala was behind bars.
Dorothy Clitheroe is just one example...missing from Phoenix in Sept. of 1973 while Alcala was incarcerated in Calif.
I've been wondering if some of these photos were perhaps given to him by someone else. I think LE needs to look back into his Army days and his UCLA days to see exactly who his friends/acquaintances were. It could also be important to know whom he contacted while in prison, outside of his family.
Are there any historical examples of serial killers who keep in contact with one another? I know there have been teams of killers (such as Bittaker and Norris), but have there ever been two or more serial killers who worked alone but shared information, trophies, etc?
Speaking of family, he seemed to live much of the time at his mother's house in Monterey Park. At least one other relative also lived there (his sister).
The only thing I could find about his mother is her name, Anna Maria German.
There is a "Anna M. German" listed in the Social Security Death Index,
born 1-10-1909 and died 2-1-1999, last residence Monterey Park, CA.
She probably held onto his belongings and he simply came back home each time. His mother bailed him out in Riverside in early 1979 when he was arrested for the kidnapping and rape of the 15-year old girl. Incredibly, a judge set his bail at a ridicuously low $10,000. Absurd, in light of his extensive history of violent sexual crimes. At least two women would have been saved if that judge had had any sense.