University of South Florida Researchers sent a letter to the Florida State Department this week, submitting more information in support of their request to exhume human remains at the old Dozier School for Boys in Marianna.
State officials said they wanted more information in order to evaluate the researchers' request for a permit to exhume some of the school's campus.
Archeologist Erin Kimmerle wants to excavate suspected grave sites in the school's "Boot Hill Cemetery," as well as a second site just north of Boot Hill.
The researchers say they want to account for, and identify, the remains of 22 people they believe to be buried in unmarked graves.
Former students at the reform school claim friends were tortured and murdered by Dozier staff, then buried on the grounds.
Researchers are also taking DNA from several family members of boys believed to have been buried at the school.