Criminal profiler Pat Brown later suggested that this rejection angered Alcala further since he afterwards killed at least three more women within two years.
His last known victim was 12-year-old Robin Samsoe, who was abducted on her way to ballet class in 1979 in Huntington Beach and her decomposing body found in the Sierra Madres twelve days later.
Since her body hadn't yet been found, he was let go.
He was also questioned as a convicted sex offender in connection with the Hillside Strangler investigation.
Shortly after arriving (coincidentally during the time that Son of Sam was active), he is believed to have killed Ellen Jane Hover, a 23-year-old socialite.