Via TDW (not my research):

James David "Jamie" O'Sullivan, age 51, passed away Monday at his residence.

James O'Sullivan was a region 5 Statesboro Regional Force member assigned as a Special Agent III Crime Scene specialist.

Harrison Deal's "accident" was in Bulloch County of Georgia and Region 5 is in that area.

https://investigative-gbi.georgia.gov/investigative-offices-and-services/regional-investigative-offices/region-5

https://www.legacy.com/obituaries/savannah/obituary.aspx?n=james-osullivan&pid=197296616&fhid=5347