HILTON HEAD ISLAND — Attorneys say a tow-truck driver acted in self-defense when he shot and killed a Bluffton man during a parking dispute last Christmas Eve.

The Island Packet of Hilton Head reports (http://bit.ly/vTtnOk ) that attorneys for 28-year-old Preston Ryan Oates make that argument during a Thursday court hearing in Beaufort County Court. Oates is charged with manslaughter in the shooting death of 34-year-old Carlos Alberto Olivera.

Oates’ attorneys say their client should have immunity under the so-called Castle Doctrine, which gives people the right to protect themselves in their homes, businesses or vehicles.

The attorneys say Oates was just doing his job enforcing parking rules when he was threatened by Olivera who had a handgun.