The jury in the trial of dairy farmer Michael Ferris has been hearing details of the catastrophic injuries sustained by a 73-year-old tillage farmer.
Mr Ferris, who is 63, is pleading not guilty at the Central Criminal Court in Tralee to the murder of John Anthony Mahony, at Rattoe, Co Kerry on 4 April 2017.
On the second day of the trial, Assistant State Pathologist Dr Margot Bolster concluded that Mr Mahony had died from polytrauma, with the total evulsion of the heart and liver due to multiple penetrating wounds.
Dr Bolster told the court that Mr Mahony had sustained at least five penetrating wounds - two of which would have gone right through his body to his back.
She said the wounds were consistent with the infliction of the prongs of a teleporter, as seen by her at the scene.
Death would have been immediate.
Earlier, Dr Bolster described arriving at the scene at 5.25pm on 4 April in the company of Superintendent Dan Keane.
She was shown the body of an elderly man in the driver's seat of a blue Peugeot car.
The car was badly damaged, with a gaping hole in the widescreen, roof and small hole in the passenger window with a large amounts of glass.
There was an unloaded shotgun in the car boot and ammunition.
Following the post-mortem examination at Kerry University Hospital, she concluded that the cause of death was polytrauma, with the total evulsion of the heart and liver, due to multiple penetrating wounds caused by a teleporter.
The jury was sent home so that legal argument could be heard in their absence. The trial is due to resume at 11.30am next Tuesday, 16 October.