Turner had been in critical condition at the hospital since she and six other law enforcement officers were ambushed while attempting to serve a warrant on Oct. 3.
WPDE reports that Turner was the one who filed the paperwork for the search warrant.
>> On WSOCTV.com: PHOTOS: Multiple officers shot in Florence, S.C.
Boone said in a statement that Turner "was the ultimate professional, excelling at everything she did. She dedicated her life to serving the victims of the worst crimes imaginable."
Authorities say Turner was among seven law enforcement officers shot by 74-year-old Frederick Hopkins. They say the decorated Vietnam War opened fire without warning when officers arrived at his home Oct. 5 to speak with his son about a sex assault investigation.
>> On WSOCTV.com: York County sheriff sends condolences to Florence officers
Three deputies and four Florence city police officers were shot.
Florence Police Officer Sgt. Terrence Carraway died at the scene.
Officer Scott Williamson remains in critical condition. Two deputies, Sarah Miller and Arie Davis, were released from the hospital over the weekend.
Frederick Hopkins Jr. is charged with one count of murder and six counts of attempted murder.
Officials have not yet said when those charges will be upgraded.
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The sheriff said funeral arrangements for Turner are still being organized.
South Carolina Gov. Henry McMaster tweeted Monday night that he and his wife are praying for Deputy Turner's family and ordered flags to be flown at half-staff in her honor, beginning at dawn on Tuesday.