NASHVILLE, Tenn. - Attorneys for the mother of a mentally ill inmate who died at Riverbend Maximum Security Institution have filed a motion for a new trial.
Charles Jason Toll, 33, died in 2010, after corrections officers forcibly removed him from his cell.
An autopsy ruled his death a homicide.
But last year, a federal jury found that corrections officers did nothing wrong.
One of the officers initially sued in the case, William Amonette, submitted a resignation letter that questioned the state's internal investigation.
Attorneys for Toll's mother, told NewsChannel 5 Investigates they never received that letter -- raising questions about state cover-up.
"I am very concerned that it may not have been provided intentionally, which opens up a whole set of questions that are relevant to this case," attorney David Weissman said last week.
The Tennessee Attorney General's Office represented corrections officers and the warden in the trial.
The office claims it turned over all the information it had, but said it no longer has copies of records it provided attorneys for Toll's mother, so it cannot confirm that it turned over the letter.
