Richard Allen is accused of killing Libby German and Abby Williams in 2017.
SEE ALSO | Trial for suspect in the Delphi murders pushed to October 2024
Recently, Judge Fran Gull forced Allen's attorneys off the case.
Now, those attorneys are asking the Indiana Supreme Court to reinstate them and appoint a new judge.
They say Gull was wrong when she accused them of gross negligence.
READ MORE | Attorneys for Delphi murders suspect claim 'white nationalist group' is responsible