How location sharing helped police catch a serial rapist-turned-killer

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Friday, Nov. 12, 2021, started arsenic a amusive nighttime successful Los Angeles for designer Hilda Marcela Cabrales, 26, and her friend, 24-year-old exemplary Christy Giles. The brace headed retired to a nightclub successful Hollywood and past to a warehouse enactment successful East Los Angeles to spot a DJ they some loved.

Christy's husband, Jan Cilliers, was successful San Francisco that play visiting his father. He says Christy and Hilda, who was caller to Los Angeles, were becoming "fast friends."

Christy Giles and Hilda Marcela Cabrales

But what started arsenic a blessed girls' nighttime retired took a sinister turn, Cilliers says, erstwhile helium woke up that Saturday greeting successful San Francisco to spot his wife's telephone location astatine a Los Angeles code helium didn't recognize. He and Christy ever shared locations, helium says, for information reasons.

Cilliers says helium texted Christy and didn't perceive back. And, arsenic the hours mounted without a word, Cilliers says, his fearfulness began to grow.

What happened that play and the tragic aftermath is investigated by "48 Hours" and contributor Jonathan Vigliotti successful "Dead Girls Don't Talk." An encore of the broadcast is streaming connected Paramount+.

Cilliers says helium experienced "raw panic" when, astatine astir 5 p.m. connected Saturday, Nov. 13, helium says helium saw Christy's telephone had moved to a infirmary astir 3 miles from that unusual address. Cilliers soon learned that Christy had been dropped determination by 2 masked men successful a achromatic Prius without licence plates. They said they recovered her unconscious connected the thoroughfare adjacent and were being "good Samaritans." Doctors had declared Christy dormant connected arrival.

"So, successful little than 24 hours, your satellite was turned upside down?" asks Vigliotti.

"Shattered, yes," Cilliers replies.

Hilda besides had a wont of sharing her telephone determination — with a adjacent person who was besides her exigency contact. That person besides became acrophobic connected Saturday, erstwhile she saw Hilda's telephone pinging astatine 8641 West Olympic Boulevard — the aforesaid code wherever Cilliers had tracked Christy's phone.

Hilda's person soon learned that Hilda, similar Christy, had been dropped disconnected astatine a infirmary by 2 masked men driving a achromatic Prius with nary plates, who said they had recovered Hilda passed retired connected the street.

Hilda was inactive alive, but successful captious condition. Two weeks later, with nary motion of regaining consciousness, her household made the hard determination to instrumentality Hilda disconnected beingness support. Her sister, Fernanda Cabrales-Arzola, said she remembers telling Hilda it was OK to permission and that she told Hilda, "Thank you for being my sister."

Hilda's household decided to donate her organs, and her mother, Dr. Hilda Marcela Arzola-Plascencia, said she remembers the aesculapian squad lining the hallway and "clapping. To grant her for giving life."

Because some Cilliers and Hilda's person knew precisely wherever the 2 women had been each day, and due to the fact that they knew the infinitesimal each pistillate was taken to each hospital, erstwhile LAPD detectives got the telephone astir the 2 cases, they had a immense caput start.

Within hours of Hilda being dropped disconnected astatine that 2nd hospital, LAPD homicide detective Jonathan Vander Lee and his spouse were connected their mode to 8641 West Olympic Boulevard. By the clip they arrived, they knew it was the location of David Pearce and that helium owned a achromatic Prius. Pearce lived determination with a roommate named Brandt Osborn.

A period later, Pearce and Osborn were arrested successful transportation with the 2 women's deaths. Pearce was yet charged with 2 counts of felony execution and Osborn, who was seen helping Pearce instrumentality some women retired of their location and dropping them disconnected astatine some hospitals, was charged with accessory to execution aft the fact.

It took a small much than 3 years for their cases to spell to trial, but successful the end, Pearce was convicted of murdering Christy and Hilda and of raping 7 different women who came guardant to attest astatine the trial. The assemblage deadlocked connected a verdict for Osborn, and a mistrial was declared for his case.

At a property league aft Pearce's conviction, Christy's mother, Dusty Giles, pleaded with the nationalist to larn the information acquisition from her daughter's case, saying, "As overmuch arsenic it hurts to suffer my babe miss ... her sharing her determination exertion told america wherever she was."

Police accidental that accusation was captious to helping get Pearce, whom prosecutors accidental was a serial rapist, yet disconnected the street.

Dusty Giles begged the nationalist to larn the acquisition from their horrendous loss, "Please, wrong your ain families ... stock locations," she said, adding, "You'll ne'er cognize erstwhile you're going to not beryllium capable to get successful interaction with somebody."

In October 2025, David Pearce was sentenced to 146 years to beingness for 7 intersexual assaults and the murders of Hilda Marcela Cabrales and Christy Giles.

In November 2025, Brandt Osborn pleaded nary contention to 2 counts of accessory aft the fact. He was sentenced to 2 years of ceremonial probation and 480 hours of assemblage service.

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