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Now, the disturbing story is being made into a movie,, which premieres Sunday on Investigation Discovery.
The three will executive produce with ID's Angela Bromstad.
Alcala preyed on young attractive women and lured them by telling them he was a professional photographer and wanted to enter their photos in a contest.
While the exact victim count remains unknown, Alcala is suspected to have killed as many as 130 women and children before he was finally captured in 1980.
In 2012, hikers in Los Angeles’ Hollywood Hills discover the severed head of Hervey Medellin, a retired flight clerk.
The cast of suspects includes former lovers, drug cartels and a murderous porn star, in a tale of lust, greed and butchery.