Gregg Allman has asked director Randall Miller to shut down production on his Allman Brothers biopic after the on-set accident in February that caused the death of a 27-year-old camera assistant.

According to the Hollywood Reporter, Allman wrote to Miller, “I am writing to you as one human being to another, and appealing to you from my heart. I am asking you from a personal perspective not to go forward.”

Production on the film has been suspended since February 14th, when Sarah Jones was hit and killed by an oncoming train. The cast and crew were filming on railroad tracks in Wayne County, GA at the time.

Despite the fact that William Hurt, the actor set to portray Allman, pulled out of the film last week, reports suggest that production might be moved to California and start up again as early as June.

“When the idea of you producing the film first came about, I was genuinely excited about the possibility of sharing my story with fans around the world,” Allman’s appeal continued. “Unfortunately, all of that changed for me on February 20 of this year. While there may have been a possibility that the production might have resumed shortly after that, the reality of Sarah Jones’ tragic death, the loss suffered by the Jones family and injuries to the others involved has led me to realize that for you to continue production would be wrong.”

The accident is still under investigation by Wayne County police.