Punta Gorda police Chief Tom Lewis issued a statement after Mary was "mistakenly struck with a live round," asking for prayers at this difficult time, saying:
"I am devastated for everyone involved in this unimaginable event. If you pray, please pray for Mary's family, and for the officers who were involved. Everyone involved in this accident is in a state of overwhelming shock and grief."
Knowlton was transported to the hospital immediately, but it was too late; she died of her injuries.
The shooting is currently being investigated by the Florida Department of Law Enforcement, during which time the unidentified officer is on administrative leave.
The shoot/don't shoot exercise has been used to help train Punta Gorda police to understand when they should and shouldn't discharge their weapons. Knowlton was just volunteering to try to make a difference in her community.