Louisiana’s Dakota Theriot to serve 5 life sentences in Angola 

Dakota Michael Theriot, 25, of Louisiana, United States is the son of Keith Theriot and the stepson of Elizabeth Theriot. Dakota was in a relationship with Summer Ernest, the daughter of Billy Ernest and the sister of Tanner Ernest.

On January 26, 2019, Dakota shot Summer, Billy and Tanner in Walker, Livingston Parish, Louisiana, stole Billy’s 2004 gray and silver Dodge Ram pickup and drove to Gonzales, Ascension Parish, Louisiana where he fatally shot Keith and Elizabeth. Dakota had been living with Summer’s family in Walker for a few weeks.


Keith and Elizabeth were transported to a hospital in Baton Rouge, East Baton Rouge, Louisiana, where they later died. Both Keith and Elizabeth were 51 while Billy was 43, Summer was 20 and Tanner was 17.

On January 27, 2019, Dakota was arrested by the Richmond County Sheriff’s Office in Richmond County, Virginia, USA. He was transported back to Ascension Parish.


On January 11, 2023, Dakota pleaded guilty in Livingston Parish to three counts of first-degree murder. He was sentenced to three life sentences to be served concurrently.

Dakota also pleaded guilty in Ascension Parish to two counts of first-degree murder and was sentenced to two life sentences to be served concurrently. He will serve out his sentence in the Louisiana State Penitentiary in West Feliciana Parish, Louisiana.

The Louisiana State Penitentiary is also known as Angola. With 6,300 prisoners and 1,800 staff, it is the largest maximum-security prison in the U.S.

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