Last month, Alex King and his 14-year-old brother Derek were found guilty of murdering their father.
But the judge ruled prosecutors violated the boys' rights by presenting contradictory theories of the crime.
Prosecutors argued at their trial that Derek King swung a baseball bat that killed their father. In an earlier trial, the boys testified that an adult friend committed the crime.
That man was acquitted. But the verdict was sealed until the boys' trial was over. Jurors in the boys' trial said they believed the adult was the real killer and that the brothers had only helped him commit the crime.
The judge has ordered a mediator to try to settle the case.