"The person is an ultrasound doctor, capable of interacting with many women. I checked the medical records and was surprised to find that, indeed, all three victims had visited this hospital for examinations before their deaths. Two for chest examinations, and one for... cough cough, gynecological." Cheng Xiao coughed twice.
"Continue."
Gu Xia's tone was rather authoritative, like that of a leader, but Cheng Xiao didn't mind.
After all, the lady was superior to him, and he definitely harbored no gender bias.
"Each of them came here within the last three months. I believe you're right, perhaps the murderer has an obsession with black underwear. By chance, he saw it while examining them, and the victims all had sweet appearances, so he... took the opportunity to act."
"Does this Doctor Guo know the three victims?"
"Not at all," said Cheng Xiao.
"That's strange..."
"What's strange?"
