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Press Release

Rapid City Man Sentenced to 75 Years in Federal Prison for Aggravated Incest

For Immediate Release
U.S. Attorney's Office, District of South Dakota

United States Attorney Ron Parsons announced that a Rapid City, South Dakota, man convicted of two counts of Sexual Exploitation of a Minor and one count of Aggravated Incest was sentenced by Chief Judge Jeffrey L. Viken, U.S. District Court.

Henry Chase Alone, a/k/a Henry Black Elk, age 36, was sentenced on December 16, 2019, to 2 consecutive terms of 30 years in federal prison sentences, followed by a lifetime of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund as to the Sexual Exploitation of a Minor charges.  Chase Alone was sentenced to an additional 15 years in federal prison, followed by a lifetime of supervised release, and another $100 special assessment to the Federal Crime Victims Fund for the Aggravated Incest charge, for a total of 75 years in federal prison.  Chase Alone was also ordered to pay $6,000 in restitution to the victims of sexual exploitation.

Chase Alone was found guilty of the charges following a federal jury trial in Rapid City on January 10, 2019.  Evidence at trial established that Chase Alone received custody of a young girl in November 2016 and almost immediately upon her arrival at his home, began sexually abusing her.  Chase Alone used threats and fear of violence to physically and sexually abuse her for years.  Through the ongoing investigation, child pornography was found on Chase Alone’s computer.  Videos and still photos established Chase Alone recorded himself and the victim engaging in sexual intercourse. 

This case was investigated by the Internet Crimes Against Children Taskforce, the Federal Bureau of Investigation, the Pennington County Sheriff’s Office, and the Oglala Sioux Tribe Department of Public Safety.  Assistant U.S. Attorney Megan Poppen prosecuted the case.

Chase Alone was immediately turned over to the custody of the U.S. Marshals Service.

Updated December 17, 2019

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