Carmen N. Fernandez-Rios, 69, recently arrived from Puerto Rico and speaks very little English.
Police said the victim was showing a rifle to a family member when the gun went off.
Tillerson will be replaced by CIA Director Mike Pompeo.
School officials were made aware of threat Sunday.
School officials and law enforcement personnel answered questions from the public about CMCSS school safety and security.
Tracy Norfleet, age 54 of Clarksville passed away Thursday, March 8, 2018.
Hilda Soldevila de Martinez age 76 of Clarksville passed away on Friday March 9, 2018 at Alive Hospice in Nashville.
During this drill, the emergency notification systems will be activated and ask that the community seek shelter in a secure location. The sirens/PA system will not be activated.
Funeral service for John Michael Wilkins, age 40, of Southside, TN will be Thursday, March 15, 2018 at 12:00 PM.
Amie passed away at her home on the morning of March 10.