As for the second murder, Mu Shaobai was coincidentally away on a business trip to Europe. His claim was supported by the departure and arrival records from the airport in addition to the eyewitnesses over in Europe that could prove he was telling the truth.
Due to the alibi of his absence alongside the concrete evidence, the police could only detain Mu Shaobai but not place him on file for investigation.
The detainment period could last no longer than twenty days. Besides, Mu Shaobai was a person of distinguished background and his lawyer insisted that the former was being framed. The police had no other alternative than to release Mu Shaobai as they failed to unearth more convincing proof. However, just six months after that, two more girls were murdered using the exact same method.
