Mr Low, 65, had worked at the Edradynate Estate for more than 20 years until his retirement in February last year.
His body was found in the Pitillie area on the outskirts of the town on 17 February, three days before his 66th birthday.
Mr Low’s death certificate, seen by BBC Scotland News, confirmed he died of a shotgun wound to the neck and chest.
Police Scotland said a report had been sent to the procurator fiscal.
Saturday 17 February – Brian Low’s body is found with his dog on a remote track in the Pitilie area near Aberfeldy
Wednesday 21 February – Medical examination establishes that Mr Low had injuries consistent with being fatally shot
Friday 23 February – A post-mortem examination confirms that Mr Low had been shot
Saturday 24 February – Police tell Mr Low’s family the findings of the post-mortem examination.
Tuesday 27 February – Police announce they have launched a murder investigation into Mr Low’s death
Tuesday 23 April – Police say they have visited more than 500 properties in the area and are sifting through 2,400 hours of CCTV footage from 56 cameras
Friday 24 May – David Campbell is arrested in connection with Mr Low’s death
Saturday 25 May – David Campbell charged in connection with Mr Low’s death
Source Agencies