Mr Jeffcoat was also injured, but not seriously.
McGrath was remanded on bail for sentencing on July 7 in the High Court at Greymouth; the Crown did not oppose the application for bail.
Lawyer Richard Bodle said McGrath was "under no illusion of the ultimate outcome of this matter'', but sought bail to enable him to complete a formal restorative justice conference with Mr Hall's family, undergo a back operation and a psychological evaluation.
"Mr Hall's family are in court and have reiterated their desire to meet with Mr McGrath in a formal setting that will hopefully assist the healing process for both families,'' Mr Bodle said.
As conditions of bail, McGrath is banned from driving and he must reside at a Dillmanstown address.
Justice Gendall issued him with a `three strikes' warning, noting that he will not be eligible for parole if there are any future offences of serious violence.
McGrath, who uttered emphatic ``guilty'' pleas to the three charges, was supported in court by a large gathering of friends and family, while Judd Hall's parents and sister sat quietly on the other side of the public gallery.