Despite this, there had been warning signs.

In December 2012, Ross grew overly concerned the world’s economy was going to collapse and traded his life savings of $20,000 into silver and gold, which he stored in his apartment.

As his sleep patterns grew more irregular and he began engaging in online gambling, Ross began self medicating with marijuana.

It was during this time that Ross missed his sister Jeannine’s wedding due to “stress”.

In mid-January 2013 he fell ill, losing 20 pounds after suffering from the flu, resulting in fever, chills, cold sweats, insomnia and anxiety.

After the two-week spell, Ross called both his parents and asked them to “take care of him,” explaining that he no longer wanted to be a teacher.

Friends also reported that around this time he had been asking odd questions, including whether they ever “thought people were robots”.

During a conversation with his father, days before the murder, it was agreed that Ross would go home in order to see a doctor and “have a rest”.

Jeannine offered to go to his Yonge Street condominium and collect him on Feb. 1.

However, after her flight had landed she texted details of Ross’ strange behaviour to her husband, including: “OMG, John’s being weird again” and “John is nuts, I’m unsure of what to do”.

She reported that Ross had been whispering about “robots and agents” that he thought were following and watching him.

During that day he had also broken down in front of the principal at his school and more than one colleague.

The principal advised him to attend a walk-in clinic and co-workers vowed to stay in communication with him, as they had concerns of suicide and self-harm.

On the night in question, after returning from a trip to McDonalds with Ross, Jeannine turned in early.

Ross stayed up and spoke to one of his colleagues on the phone.

The pair had a somewhat rational conversation and discussed solutions, including seeing a doctor and getting some sleep.

Although the pair agreed to talk again the following day, that call would never come.

In the early morning hours, Ross killed Jeannine by smashing her head in with a crystal and stabbing her multiple times.

Neighbours would later tell police they heard banging noises, followed by the words: “I’m dying”.

Police discovered a butcher knife, sea shell and samurai sword bloodied and near the body.

After his arrest, one officer said when asked, Ross had described Jeannine as his aunt and a robot, before asking officers who the woman was.

Ross was described as having a “glossy stare” in his eyes and white and pasty substance on his lips. Another officer said Ross said his name was Jesus Christ when asked.

On Thursday Justice Edwards said doctors had testified that on the night in question Ross thought his sister was an impostor, a cyborg or a robot that was “sent to get him”.

He added that evidence showed that in his twisted mental state, Ross had been trying to remove a computer chip or battery from Jeannine’s head.

Justice Edwards also dealt with the theme of motive, bringing up the evidence from two of Ross’ former girlfriends, who explained to police that Ross had felt animosity towards his sister, having always suspected his parents favoured her.

However, Justice Edwards dismissed the theory, noting that doctors had testified that the extreme “violence and manner” of the act was consistent with psychotic delusions.

He further noted that Ross had not lured Jeannine to his condominium.

In summing up, he cited the testimony of one forensic psychologist who explained that at the time of the beating, Ross was incapable of appreciating the nature and quality of his actions.

Ross’ fate will now be left up to the Ontario Review Board, which will decide in the next 45 days how long Ross will spend incarcerated and whether it should be inside a prison or a hospital.

Until that point, he will be transferred from his current cell into a hospital, if a bed is available.