By Emily Blake
September 30, 2014 at 09:22 PM EDT

A fourth member of the Midnight Rider crew has been charged in the death of 27-year-old camera assistant Sarah Jones in a train accident that occurred on the set of the Gregg Allman biopic in February, according to reports.

The Associated Press is reporting that Hillary Schwartz, an assistant director, pleaded not guilty on Tuesday to involuntary manslaughter and criminal trespassing in Wayne County Superior Court. She was indicted earlier this month.

Jones’ family filed a wrongful death suit back in May that claimed that members of the crew did not get permission to shoot on the railroad bridge where Jones was killed, and that they kept this information from the rest of the crew. Her family claimed that “the Midnight Rider defendants falsely informed, or gave the impression to, the cast and crew, including Sarah, that they had received permission to conduct filming on the railroad tracks.” The suit also claimed the crew didn’t hold a safety meeting or have an on-site medic present.

A rep for Jones’ family did not respond to EW‘s request for comment.

Facing the same charges are producer Jay Sedrish, director Randall Miller, and Miller’s wife and business partner, Jody Savin. Miller and Savin pleaded not guilty in July to the charges, and wrote in a statement that “our hearts are broken, our spirits our broken” and that Jones’ death “will haunt us forever,” but maintained that “we never had criminal intent; we would never knowingly or intentionally put anybody’s safety at risk.”

Schwartz, Sedrish, Miller and Savin are reportedly due back in court on March 9.