Lexington County deputy Jillian Olson dies during Lake Murray dive training
Jillian Olson, a 29-year-old Lexington County master deputy and member of the sheriff’s dive team, died Thursday during an underwater training session on Lake Murray. State natural resources investigators and SLED are assisting while the county coroner conducts its own review of cause and manner of death.
Jillian Olson, 29, died Thursday during an underwater training session with the Lexington County Sheriff’s Department dive team on Lake Murray. Olson joined the department in 2021, was promoted to master deputy in the Warrant Division in 2025, had served on the dive team since 2024, and received multiple departmental awards; she held bachelor’s and master’s degrees from Western Illinois University. The South Carolina Department of Natural Resources is leading the investigation with assistance from SLED, and the Lexington County Coroner’s Office is conducting its own review.