Cops are describing Sabrina Kauldhar as a serial killer.

She is also an enigma wrapped in a riddle.

Over three grim days last week, a bloodbath ensued, sending three innocent people to the morgue.

The 30-year-old Toronto woman has been charged with first-degree murder in the brutal stabbing death of a retired Hamilton teacher behind his social club in that city, and two counts of second-degree murder in the murders of a Fallsview Casino cook and a woman she allegedly knew in Toronto.

A fourth potential victim has been found safe.

None of the charges have been proven in court.

Sabrina Kauldhar in happier times kidding with her cousins. FACEBOOK

Former cop and University of Western Ontario professor Michael Arntfield noted that there is not a lot of public information on the accused killer. What Kauldhar actually is could be open for debate.

“(If the allegations are true,) it’s serial murder by definition and even conforms to the FBI description,” Arntfield told The Toronto Sun. “In a lot of ways, she could be more closely identified with a spree killer or a mass killer.”

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Arntfield said that a typical spree-killer initially targets individuals they know before the slaughter becomes indiscriminate. Those in this category include killer Charles Whitman, aka the Texas Tower Sniper.

On Aug. 1, 1966, using knives, Whitman murdered his mom and his wife in Austin, Texas. The bloody day, however, was not through for the former U.S. Marine.

SPREE KILLER: Charles Whitman. APD
SPREE KILLER: Charles Whitman. APD

Whitman then made his way to the University of Texas at Austin with a small arsenal and began indiscriminately shooting at people from the clock tower on the 28th floor. For 96 minutes he squeezed off round after round, killing 11 more people and wounding 31 before cops took him off the board.

“The two male victims in the alleged Sabrina Kauldhar murders were simply at the wrong place at the wrong time,” Arntfield said, adding that reputed female serial killers are “highly atypical”.

“But this is still serial murder (if the allegations are true). With a spree killing, historically the murders are related to mental health. Workplace murders are an example of this.”

Arntfield noted that the term “spree-killer” has fallen out of use “given the difficulty in quantifying ‘spree’ from the total number of victims, which is comparatively more accurate — serial being two and mass murderer being four.”

Suspected serial killer Sabrina Kauldhar was arrested Thursday in the Burlington area.
Suspected serial killer Sabrina Kauldhar was arrested Thursday in the Burlington area.Photo by Handout /Niagara Regional Police

Kauldhar grew up in a warm, loving home in Innisfil and her parents were dentists. A high school friend said her life began spiralling downward in a haze of drugs and mental health issues after her mother died in 2020.

A pal told the Sun she went down a “bad path.”

“I haven’t been in contact with her really at all since about 2015 and even then it was her trying to ask for money … and I just said no and hadn’t heard anything since,” said the man, who asked not to be named.

“Other than that little interaction, I knew her in high school well, her parents were both dentists. She was a straight-A student and very active in sports. Played high-level hockey and did figure skating when she was young.”

MURDERED: Lance Cunningham, 47, was pronounced dead at the scene.
MURDERED: Lance Cunningham, 47, was pronounced dead at the scene.Photo by Handout /Niagara Regional Police

The Sabrina Kauldhar charged with a trio of horrific crimes is allegedly not the same “happy, fun person with a good head on her shoulders.”

On Tuesday, Toronto cops took a call in the Junction that a woman in her 60s had been found dead with injuries to her body. The victim’s name has not been released, but Global News said the pair were roommates.

HAMILTON: Mario Bilich was found with significant injuries consistent with a stabbing.
HAMILTON: Mario Bilich was found with significant injuries consistent with a stabbing.Photo by Handout /Niagara Regional Police

The next day at John Allan Park in Niagara Falls, officers found Fallsview Casino cook Lance Cunningham, 47, with critical injuries. He had been walking his dogs and died at the scene. A GoFundMe has been set up for his wife and daughter.

On Thursday, just after noon, officers in Hamilton were called to a MacNab St. N. parking lot and found an unresponsive man. Cops say former high school teacher Mario Bilich, 77, had been stabbed and later died in hospital.

Sabrina Kauldhar? She remains a mystery.

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@HunterTOSun