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Home Seeking Potential Victims in Robert Arnold Koester Case

Seeking Potential Victims in Robert Arnold Koester Case

Seeking Potential Victims in Robert Arnold Koester Case

The FBI is asking for the public’s assistance to identify potential victims of a suspected serial sexual predator who took nude photos of models and is alleged to have sexually assaulted many of these models, including individuals younger than 18 years of age. Robert Arnold Koester, also known as Bert Kay, Rhake Winter, and Qitooly, a 52-year-old U.S. citizen, has potentially been engaging in these criminal acts from 1994 through November 13, 2018. Victims have been identified in multiple cities across the United States. At the time of his arrest, Koester worked as a professional photographer, engaged in the photography of models, primarily on the West Coast of the United States.

If you have information about this ongoing investigation or believe you or someone you know may have been victimized by Robert Arnold Koester, the FBI requests that you complete this secure, confidential online questionnaire.

Identified victims may be eligible for certain services and rights under federal and/or state law.

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1. Do you have information concerning Robert Koester?  

2. Were you photographed by Robert Koester?

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Privacy Act Statement

The FBI is authorized to collect the information on this form by one or more of the following provisions: Title 28, United States Code, sections 533 and 534; Title 28, Code of Federal Regulations, section 0.85; and the Attorney General Guidelines for Victim and Witness Assistance. The information requested will assist the FBI in providing you with assistance to which crime victims are entitled under federal law. You do not have to provide the requested information; however, failure to do so may hinder the FBI in providing you with crime victim assistance. The information collected on this form is protected by the Privacy Act of 1974, as amended, Title 5, United States Code section 552a, and is maintained in the FBI’s Central Records System, DOJ/FBI-002, a description of which was published in the Federal Register at 63 Fed. Reg. 8671 (Feb. 20, 1998) and which may be viewed at