In the wake of the death of John McQuaid, the mystery of who killed his family remains unsolved.
In the aftermath of the deaths of his wife, daughter, son, uncle and niece, some have speculated that it was a serial killer.
But a study by the University of York in the UK suggests that the murder of a family of seven in the small village of Snowshoe in Northumberland, England, in May 2019 was not the work of a serial murderer but a suicide.
The team of scientists analysed the blood and DNA from the body of 22-year-old John McRae and concluded that it came from someone who was dead for a very long time.
They concluded that there was no evidence of foul play, as has been suggested by other experts.
But the team of researchers said they did not think the killer was a man known to have a troubled past.
They found no evidence that he had any psychiatric or psychological issues, and found that he was not a threat to himself or others.
The findings were published in the journal Proceedings of the Royal Society B.
“The evidence was that the deceased’s death was a sudden and unexpected event that occurred as he was leaving the property,” lead author Professor Richard Lyle, from the University’s Department of Biological Sciences, said.
“He did not show any signs of distress at the time, and there was not any evidence of suicide.”
This was a natural death that occurred in a relatively peaceful environment.
“It was not clear how long the victim’s body had been there, but he was buried in the family plot.
The research team, led by Dr Joanne Maughan, said they could not rule out that the deaths were accidental, but it was possible that someone was deliberately trying to commit suicide.
It was also possible that the body was buried with the victim in the plot, which may have been a deliberate method of suicide, she said.
While the murder is a mystery, there are a number of theories about what happened to the family.
John McRaea’s father was also the victim of a burglary in 2013, when the house he shared with his parents was burgled.
The crime, which is still unsolved, has left the McRaaes bereft, and they have asked that anyone with information about the murder to contact the police.
The investigation is being carried out by the Northumbria Police’s Homicide Unit.