As we've reported, Allen's attorneys say his physical and mental health have deteriorated since his incarceration in Westville, where he was moved shortly after his arrest in connection to the 2017 killings of Williams and German.
Many Westville guards are also members of the "Odinite cult" and have "threatened, intimidated, and mentally abused" Allen, his attorneys write in the court document.
They argue crucial evidence at the crime scene near Deer Creek and the Monon High Bridge was also withheld.
They say the killers left "runes," which are described as sticks deliberately arranged on the girls' bodies, and used German's blood to paint an "F" on a nearby tree.
The court document also points to four people, whom police have never named, as possible suspects. News 18 also isn't naming them because they haven't been arrested or charged with a crime.