On the day when the water in the moat receded, a section of gray-white stuff was exposed on the river beach. Forensic doctor Liming knelt down and took a look, and said to detective Yu Sheng: The corpse must have waxed for at least two months.
The deceased was Shen Yao, a young nurse from the Cardiac Surgery Department of the Second Hospital of the City. Her radial artery was carefully cut with 4-0 medical sutures, and there was a living reaction on the edge of the incision - the murderer took that perfect blood vessel from her arm just after the deceased breathed her last.
But that's not the whole truth.
There is also a pinhole with a diameter of 0.7 Mm hidden on Shen Yao's body, and a very small amount of bone morphogenetic protein remains in the pinhole. Someone had given her an injection before the murderer.
Eucalyptus followed the pinhole and discovered that the last person Shen Yao came into contact with before her death was an elderly person in the ward where she worked as a hospice volunteer who could not speak complete sentences. The old man only said one word:
"Needles."
Two women, two clues, the same body. A marked blood vessel, a river bed hiding paper rust. When Yu Sheng and Li Ming peeled off the wax shell layer by layer, they discovered that Shen Yao was not the only prey - there was also a black hair tie that did not belong to her in the river.
