It's a motion that's more than 150 pages long. Steven Avery's layer Kathleen Zellner has filed a motion for more DNA testing, which she hopes will prove his innocence.
"We are going to get to the bottom of who killed Teresa Halbach," said Zellner.
The motion sites several instances in the original investigation that Zellner believes should be retested.
"I think the motion raises some very interesting issues, some of them have been raised at trial, but whether evidence was planted, whether evidence was moved," said attorney and legal expert, Avi Berk.
Zellner's motion says officers "entered the Avery property twice on November 7 prior to the charred bones and key being discovered on November 8."
She also claims other people, "were allowed to enter the property after it was closed to the general public."
Zellner says one of her strongest points is the key found in Halbach's car. She maintains, despite several searches of Avery's home that key wasn't found until later and "allegedly the key had Avery's complete DNA on it, but not Teresa Halbach's."
"Most young women have a car key that looks like an octopus with dangles and charms and ribbons hanging off of it. Now was it a key to her vehicle yes, was it her key without her DNA on it, I think that's a very interesting question," explains Berk.
Now a judge will have to decide whether to accept or deny Zellner's motion.
"Many, many interesting questions, some of them were sought to be addressed in the first trial, but many of them were not," said Berk.
The Manitowoc County Judge who sentenced Steven Avery in 2007 to life in prison is Patrick Willis. Willis retired in 2012.
Avery's case is currently being handled by Sheboygan County Circuit Court Judge Angela Sutkiewicz.
