You frowned and asked, "Are all the strangulation marks the same?"
"Yes, they are." Xian Qianling nodded, "Just now, another woman died, a white-collar worker on her job. She was found dead in her company's restroom, with a strangulation mark on her neck as well."
"What kind of strangulation mark?"
"A rope."
"A rope, what kind of rope?"
"Just the most common kind of hemp rope, as thick as a thumb."
After pondering for a moment, you asked Xian Qianling again, "No hemp rope was found at the scene?"
"Mhm." Xian Qianling nodded affirmatively, "The three victims died in places far from each other, and they didn't know each other. I really don't know why the twisted killer would target them like this."
At that moment, Zhang Zhaoyuan put away his mobile phone, which you happened to see, and you immediately asked Xian Qianling, "Have you checked their phones?"
"We have checked. There were no clues inside. Their social circles didn't overlap at all."