Later, Brett's expression turned serious as he received a phone call.

Since Brett had stepped out of the car to take the call, Callie couldn't hear the conversation through the window, but she observed it was a young woman's voice.

Brett appeared to be in a heated argument with the caller, his usually composed face displaying an unusual fierceness. Concerned, Callie asked him what was wrong when he returned to the car.

Brett waved it off as a previous work disagreement. He then drove Callie to a secluded suburb, instructing her to wait in the car.

While he went off with a shovel.

The shovel was subsequently discovered at the crime scene. Callie waited patiently, yet her father failed to return. Restlessness consumed her as she sat in the car.

Despite her father's cautionary advice against following him, Callie eventually succumbed to impatience and ventured out to search for him, only to stumble upon a gruesome scene. Her legs buckled beneath her, and she promptly dialed the police. That was everything.

The most suspicious aspect arose from the phone call Brett had received. Ethel presented a call log from that period, revealing a single call corresponding to Callie's description. However, it originated from an untraceable burner phone.

The prime suspect appeared to be Jamie, considering the scarcity of women associated with Brett. Brett had remained unmarried, dedicating his time to his daughter and elderly parents.

Despite Callie's grandmother's persistent efforts to persuade Brett otherwise, Brett steadfastly maintained that he had no desire to impose on anyone else.

It was confirmed that Brett hadn't been romantically involved with any women, heightening the likelihood that the woman he had argued with was Jamie.

After Callie underwent additional examinations and was advised to rest, Ethel and Nicole exited the room in unison.

Outside, Nicole shared her theory. She supposed Jamie acting alone wouldn't have possessed the strength to fatally injure Brett and inflict multiple stab wounds.

Brett, a robust man towering at six feet tall, wasn't easily subdued.

Conversely, Jamie had been physically frail, frequently fainting during her tenure working with Jemma.

Moreover, Jamie had recently attempted suicide by slitting her wrists, resulting in a substantial loss of blood, which made a swift recovery improbable.

Therefore, Jamie might have an accomplice, or she could not commit the crime single-handedly.

Stabbing someone over sixty times showcased a profoundly disturbed psyche, signifying that this individual posed a significant menace to society. A true madman.

Ethel concurred with Nicole's speculation. Based on her interactions with Jamie during Jamie's hospitalization, she couldn't envision Jamie overpowering Brett. Moreover, the absence of drugs in Brett's system, as indicated by the autopsy report, eliminated the possibility of Brett being incapacitated.

Considering Jamie's frail condition, Brett could have easily overpowered her several times over.