First of all, we can rule out that the reporter is the real murderer. Reporter Qian came to Jia Charity's appointment (clue: there was a call record with Jia Charity in the mobile phone at 18:30), with the purpose of extorting Jia Charity. He has Jia's charity, but Sha people have no enthusiasm. If Jia Charity dies, he won't get the blackmail money. At the same time, if Jia Charity dies within the agreed time, the reporter Qian will be very suspicious.
In addition, the knife prepared by the informant for self-defense has never been used (clue: there is a brand-new knife in his pocket, without any traces of use), indicating that it did not conflict with the deceased. So I ruled it out.
Third, we can rule out boss Sun, who has been drinking beer and consumed a whole box: a pack of soft Chinese cigarettes, a little wet, and sniffed the beer carefully & consumed a box of beer)
The crime scene was full of energy. Boss Sun left the bar at 2 1: 00 and arrived at 2 1: 15. There is fire at this time, so we can't enter the sandman again. (clue: consumption record: a bar, a case of beer, checkout time: 2 1:00)
The body only contains ecstasy ingredients, and the dispenser is Secretary Zhao, which can be ruled out because it is not fatal.
First, Zhou servant didn't use the rape drug (Zhou servant subconsciously thought that the deceased was drunk under the hint of text messages and environment, so there was no need to wake up the deceased and give him the rape drug, just do it directly, so the rape drug bottle in the clue was very tight, which implied that it had not been opened. )
Second, the informant's money is to go to the appointment for extortion, and he has no reason to prescribe medicine; Moreover, from the time line, before the reporter's money arrived, Zhou had already inserted a knife and was ready to frame the reporter's money.