COVINGTON, LA (WVUE) - Andrew Sumner, 22, pleaded guilty to manslaughter in the death of a woman who was fatally stabbed and then set on fire in her Slidell apartment three years ago.
The St. Tammany District Attorney says Sumner was about to go on trial for second-degree murder when he changed his plea.
Sumner was one of three people charged in the death of Ashley King. In February of 2012, she was beaten, stabbed 13 times and then set on fire in her home.
Prosecutors say Sumner went to King's apartment with his girlfriend, Katelyn Lusich, and his friend, Devin Baham, in order to rob her of prescription drugs and money.
Sumner also pleaded guilty to aggravated arson and obstruction of justice.
Lusich had already pleaded guilty to obstruction of justice and has been sentenced to 40 years in prison. She was set to testify in both trials.
The D.A. says Sumner has also agreed to cooperate with prosecutors. Baham is scheduled to go on trial April 6.