Porcupine Man Found Guilty of Aggravated Sexual Abuse of a Minor and Assault Resulting in Serious Bodily Injury

RAPID CITY - United States Attorney Alison J. Ramsdell announced that a jury has convicted Wilbur Morrison, Jr., age 36, of Porcupine, South Dakota, of two counts of Aggravated Sexual Abuse of a Minor and one count of Assault Resulting in Serious Bodily Injury following a two-day jury trial in federal district court in Rapid City, South Dakota. The verdict was returned on February 28, 2024.

The charges carry a mandatory minimum of 30 years up to life in custody and/or a $250,000 fine, up to life on supervised release, and a $300 special assessment to the Federal Crime Victims Fund.

Morrison was indicted by a federal grand jury in May of 2023.

Morrison sexually abused a juvenile female on the evening of January 12, 2023, near Porcupine. This abuse was witnessed by two juvenile males. As a result of sexual abuse committed by Morrison, syphilis, a sexually transmitted disease, was transmitted to the juvenile female victim.

This case was investigated by the Oglala Sioux Tribe Department of Public Safety and the FBI. Assistant U.S. Attorney Megan Poppen prosecuted the case.

A presentence investigation was ordered and a sentencing date has been set for May 17, 2024. The defendant was remanded to the custody of the U.S. Marshals Service.