Texas Man and Nebraska Woman Sentenced for Second Degree Murder, Assault Resulting in Serious Bodily Injury, and Assault with a Dangerous Weapon

SIOUX FALLS - United States Attorney Alison J. Ramsdell announced today that U.S. District Judge Karen E. Schreier has sentenced a Plano, Texas, man convicted of Second Degree Murder and a Niobrara, Nebraska, woman convicted of Assault Resulting in Serious Bodily Injury and Assault with a Dangerous Weapon.

Alexis Delarosa, age 33, was sentenced to 30 years and five months in federal prison, followed by five years of supervised release, and a special assessment to the Federal Crime Victims Fund in the amount of $100. Delarosa’s sentencing took place on July 20, 2023.

Justina Tuttle, age 39, was sentenced to six years and eight months in federal prison, followed by three years of supervised release, and a special assessment to the Federal Crime Victims Fund in the amount of $100. Tuttle’s sentencing took place on December 27, 2022.

Delarosa and Tuttle were indicted by a federal grand jury in September of 2021. Tuttle pleaded guilty on May 23, 2022. Delarosa pleaded guilty on March 22, 2023.

The convictions stemmed from an incident on December 21, 2020, at Wagner, South Dakota, when both Delarosa and Tuttle went to the residence of George Cournoyer, Jr. Once there, Delarosa and Cournoyer got into a physical fight which resulted in Delarosa hitting Cournoyer multiple times with a hammer. Tuttle joined in at some point and hit Cournoyer with a bat. Delarosa and Tuttle left the home without calling the police. Cournoyer died a short time later.

This case was investigated by the FBI and Yankton Sioux Law Enforcement. Assistant U.S. Attorney Ann M. Hoffman prosecuted the case.

This matter was prosecuted by the U.S. Attorney’s Office because the Major Crimes Act, a federal statute, mandates that certain violent crimes alleged to have occurred in Indian Country be prosecuted in Federal court as opposed to State court.

Delarosa and Tuttle were immediately remanded to the custody of the U.S. Marshals Service following their respective sentencings.