In a second trial, the King brothers pleaded guilty to third-degree murder.
Kevin Convey, 19, pleaded guilty to third-degree murder in exchange for his testimony against the others.
He was convicted and sentenced to 27 years for a third-degree murder he committed six months earlier.
He was found guilty of third-degree murder but declared mentally ill in February, and has started an appeal of the verdict.
After a court-ordered mediation, they pleaded guilty to third-degree murder.
The punishment for third-degree murder is 10 to 20 years in prison, much less severe than the life term carried by first-degree murder.
Three of the officers in the latter case have been charged with third-degree murder.
The company has also been charged in state court with third-degree murder and manslaughter, although no individuals are named.
To avoid a retrial, the brothers then pleaded guilty to third-degree murder.
Ms. Ashley was charged with third-degree murder and manslaughter.
