The court heard that Tan began browsing Instagram extensively in October 2017 to look for girls he found attractive.
She said she told him no and blocked his account.
Cody Ryan Maberry had been charged with multiple child sex crimes related to encounters with victims under 18.
Tsleil-Waututh Nation declined to comment on the upcoming plan.
She said he offered to pay for sex or nude photographs.
When another of his victims grew suspicious after watching a YouTube video about a scam involving a man asking girls for nude photographs, she stopped contacting him for a few months.
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Investigators Â say Maberry, who was 23 at the time of the alleged incident, told the girl he would hurt her or her niece if she told anyone about the pictures or their encounter.