Human Trafficking Investigation Involving Juvenile Results in Four Convictions

A months-long investigation conducted by the Portland Police Bureau’s Human Trafficking Unit (HTU), in coordination with the Multnomah County District Attorney’s Office (MCDA), has led to the successful prosecution and sentencing of four individuals in a case involving the trafficking and exploitation of a juvenile victim.

In December 2023, HTU made initial contact with a 16-year-old female observed engaging in commercial sex acts on Northeast 82nd Avenue. At the time, the juvenile was identified and interviewed but declined to participate as a victim.

In March 2024, the same individual voluntarily re-engaged with detectives, disclosing that she had been a victim of sex trafficking since the age of 13. HTU immediately launched a full-scale investigation.

As a result, two traffickers were identified and arrested. HTU also identified two known buyers, both of whom knowingly solicited the minor over an extended period.

Working closely with MCDA, prosecutors developed strong cases against all four defendants. Each individual has since entered a guilty plea, resulting in the following sentences:

James J. Alfonsi (buyer), 67, sentenced to 80 months in prison

Vladimir I. Tishenko (buyer), 59, sentenced to five years in prison

Domonique L. Williams (trafficker), 33, sentenced to 19 years in prison

Kai’Leif L. Newcomb (trafficker), 23, sentenced to 15 years in prison

“This case is a stark reminder that human trafficking is not a distant problem,” PPB Chief Bob Day said. “It is happening right here in our community. The successful resolution of this investigation is a direct result of trauma-informed policing, strong partnerships, and a victim-centered approach. We are committed to holding traffickers and sex buyers accountable and continuing to protect our most vulnerable residents from exploitation.”

Human trafficking is a pervasive and deeply harmful crime that targets vulnerable individuals, often children, and subjects them to ongoing abuse and exploitation. It is fueled by demand and perpetuated by those who seek to profit from human suffering.

The Portland Police Bureau considers the identification and protection of trafficking victims a top priority. Through specialized units like HTU and close collaboration with MCDA and other partners, PPB is focused on proactive investigations, victim outreach, and ensuring that perpetrators are brought to justice.

This case exemplifies the value of building trust with survivors and the long-term commitment required to dismantle trafficking networks.

If you know or suspect someone is being trafficked, please call 911, PPB’s non-emergency line 503-823-3333, or the National Human Trafficking Hotline 1-888-373-7888. Non-emergency Portland-related tips can also be reported to humantrafficking@police.portlandoregon.gov.

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