Steven Avery's attorney has filed a motion for new DNA testing of some of the evidence used in his murder trial.More Steven Avery coverageAttorney Kathleen Zellner said the motion is to request testing for touch DNA in the RAV-4 that belonged to Teresa Halbach.Avery is serving a life sentence for the rape and murder of Halbach in 2005. Previously, Zellner has pointed to a third-party suspect in Halbach's murder. That person was a key witness against Avery at trial, WBAY-TV reported. In the latest filing, Zellner argues a witness who was delivering newspapers on Nov. 5, 2005, saw two people, one a shirtless man, pushing a dark blue RAV-4 down Avery Road towards the junkyard," WBAY-TV reported. “Shirtless driver and others deposit skin cells all over seats, gear shift, hood releases, hood prop, license plate, lug wrench, blinker light, etc,” Zellner said in a post on X. Avery contended in a February motion that newly discovered evidence undermines the prosecution's key witness and the integrity of the forensic evidence used against him."The guilty do not request DNA testing but the innocent do," she wrote on X.