A Pierre man was arrested Tuesday morning on a charge of First Degree Rape. Captain Byran Walz with the Pierre Police Department says the arrest of 35 year old Brandon Snodgrass is the result of an ongoing investigation into the alleged sexual assault of a juvenile under the age of 13 in the City of Pierre. Snodgrass was taken into custody after law enforcement executed a search warrant at his residence. Snodgrass was transported to the Hughes County Jail on the charge where he remains in custody. Citing the on-going investigation, additional details will not be released. First degree rape in South Dakota involves a victim at or under the age of 13 years old. It is a Class C felony, punishable with a penalty of life in prison and up to a 50-thousand dollar fine if convicted of the charge.