A 30-year-old man died after being stabbed 18 times by his neighbour at a Devonport apartment complex in 2012, a coroner has found.
On Monday, Coroner Simon Cooper released the findings of his investigation into the death of Benjamin Murray Maxwell.
Mr Maxwell died on Christmas Day, 2012, following an argument with his Croft Avenue neighbour Adrian Wayne Smillie, who is now in prison for his murder, Mr Cooper said.
Smillie also stabbed Mr Maxwell's flatmate Ashley Richard Stott four times, Mr Cooper said.
"Mr Maxwell died because of being stabbed by Adrian Wayne Smillie. Mr Maxwell knew Smillie and there was some history of animosity between them.
"There was evidence of previous altercations and what might be described as 'issues' between Smillie and Mr Maxwell and Mr Stott, extending back some time.
"The reason for the fight and how it started were not clear on the evidence presented at the trial of Smillie; however it resulted in Smillie stabbing Mr Maxwell with a knife numerous times to the chest and arms."
Smillie left the area and police were alerted to the incident by two triple zero calls, Mr Cooper said.
"The first officers to arrive found Mr Maxwell lying in a pool of blood on the driveway outside the Croft Avenue unit complex.
"Not far away, police found Mr Stott lying in the doorway of his unit. Both men were unconscious."
Mr Maxwell died from his injuries at the scene, Mr Cooper said.
State forensic pathologist Dr Christopher Lawrence carried out an autopsy on Mr Maxwell's body and concluded the cause of death was stab wounds to the chest.
"Dr Lawrence noted that Mr Maxwell had suffered in the order of 18 stab wounds, 13 of which were in the back and two of which wounds penetrated his right and left lungs."
In 2014, a jury found Smillie guilty of the murder of Mr Maxwell and wounding Mr Stott and Justice Stephen Estcourt sentenced him to 21 years imprisonment.
Justice Estcourt imposed a 12 year non parole period and said his schizophrenia diagnosis may explain his reluctance to accept responsibility.
Smillie appealed the conviction in 2016, claiming he had acted in self defence when he stabbed Mr Maxwell 18 times.
The appeal was dismissed in November, 2017.