MCSO Detectives Seeking Community Tips Related to Child Sexual Abuse Investigation
Published
MULTNOMAH COUNTY, Ore. – Detectives with the Multnomah County Sheriff’s Office (MCSO) have arrested a 56-year-old man on more than 140 charges as part of an investigation into alleged crimes against children.
On Monday, October 6, 2025, MCSO detectives assigned to the Internet Crimes Against Children (ICAC) Task Force received information from the National Center for Missing & Exploited Children (NCMEC) detailing historical and recent sexual abuse of minor children and the dissemination of child sexual abuse material (CSAM) from a residence in Wood Village, Oregon.
On Thursday, October 16, 2025, detectives executed a court-authorized search warrant at the home, located near Northeast Pike Street and Northeast Kokanee Lane in Wood Village. During the search warrant, detectives arrested 56-year-old Iosif Blashishen.
Detectives booked Blashishen into the Multnomah County Detention Center on 142 charges, including:
- Six counts of first-degree sexual abuse
- One count of first-degree rape
- One count of first-degree sodomy
- Sixty-seven (67) counts of first-degree encouraging child sexual abuse
- Sixty-seven (67) counts of using a child in the display of sexually explicit conduct.
Detectives believe there may be additional victims and are asking anyone with information to contact Detective Dylan Lerch (dylan.lerch@mcso.us) or Detective Jonathan Zwick (Jonathan.zwick@mcso.us).
In accordance with ORS 133.870, MCSO is releasing Blashishen’s booking photo to the public to aid in the identification of potential victims and additional criminal activity.
Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt.
The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change.

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