Editor's note: This article includes disturbing details about a child's death that might be difficult for some people to read. An Aurora woman will spend more than 80 years in prison after she pleaded guilty to killing her daughter last year. Alexus Nelson, 28, pleaded guilty to three felony counts and was immediately sentenced on Wednesday. Nelson pleaded guilty to: second-degree murder tampering with a deceased body attempt to influence a public servant Arapahoe County District Court Judge Joseph Whitfield sentenced Nelson to 48 years on the murder charge, 24 years on the tampering charge and 12 years on the attempt to influence charge. Those are the maximum sentences on each charge. Judge Whitfield ordered the sentences to be served consecutively, meaning Nelson's full sentence is 84 years.