A South Dakota woman will spend the next 40 years of her life behind bars after she killed her 2-year-old little boy for wetting the bed, a Rapid City judge ordered on Tuesday.

According to the Rapid City Journal, Katrina Shangreaux, 30, also referred to as Katrina White Whirlwind, pleaded guilty to to second-degree murder in March, for the beating death of her 2-year-old boy, Kylen Shangreaux. Her sentence of 40 years in prison will be followed by five years of probation, making it one of the longest sentences handed down for second-degree murder in years by the U.S District Court of South Dakota.

“Not a second, not a minute goes by every day that I don’t think about losing him,” Shangreaux told the judge.

As CrimeOnline previously reported, the fatal incident occurred on July 28, 2016, after a night of Shangreaux drinking and using pills. She came home to her residence in Porcupine and grew outraged when she discovered the little boy wet his bed.

In her written statement, Shangreaux noted that she felt Kylen acted defiantly toward her after wetting the bed, which enraged her further. She admitted she hit and bit him several times, injured his private parts, threw him on the floor, then kicked him in the head and stomach.

She also indicated that Kylen “gave her a sideways look” and called her by the name of his aunt, which apparently sent her over the edge. She wrote she only stopped attacking Kylen when “she saw that he appeared different and realized how badly she had injured him.”

According to court documents, the little boy’s aunt, Angie, 38, took care of him for around a year until Shangreaux won a custody battle took Kylen back. Less than two months later, Kylen was dead.

After the severe beating, Shangreaux said she asked her mother, Sonya Dubray, to help Kylen drink some apple juice, but while trying to drink the juice, the boy fell over and soiled himself. Shangreaux then called for medical help. Paramedics rushed Kylen to Pine Ridge hospital, where he was pronounced dead.

Donald Habbe, a physician who conducted the autopsy on Kylen, said the boy had injuries on 70% of his body. His official cause of death was listed at blunt force trauma. The doctor also noted that along with fractured ribs, blood pooled to Kylen’s bruises, which took oxygen away from his organs.

“The most shocking was the damage that she did to his scrotum,”  Assistant U.S. Attorney Sarah Collins said during sentencing on Tuesday, while explaining how the toddler’s genitalia had been completely smashed in during the beating.

Although authorities initially charged Shangreaux with first-degree murder, child abuse, and neglect, the charges were all dismissed and replaced with a second-degree murder charge as part of the plea deal made with federal prosecutors.

Meanwhile, Shangreaux’s mother is facing charges of accessory to murder, giving a false statement, and tampering with evidence. She pleaded not guilty and is expected to go to trial for the charges.

[Feature Photo: Kylen Shangreaux/Facebook]