WATERTOWN, S.D. (Dakota News Now) - U.S. Attorney Ron Parsons announced on Friday that a Watertown, South Dakota, man has been convicted of Aggravated Sexual Abuse and Sexual Abuse of a Minor.

Gokoh Brown, age 29, was sentenced to 40 years in federal prison, 20 years of supervised release, and $200 to the Federal Crime Victims Fund.

Brown was indicted by a federal grand jury in August 2024 and was found guilty following a jury trial on May 21, 2025.

Brown, 27 years old at the time, repeatedly sexually assaulted a 12-year-old victim while living on the Lake Traverse Reservation from January to August of 2023.

This case was investigated by the FBI, Sisseton-Wahpeton Oyate Law Enforcement, and the DCI.

Brown must register as a sex offender once released from federal prison.

The U.S. Att

See Full Page