Yeah and the fact that he really really wanted to infiltrate Xueguizi. Wonder if he has been undercover at Xueguizi before and earned there all that stuff. Honestly there arent any more players to tie strings to. Besides he fits the profile of the first manual robbery, hes the inside man so to speak. Best course of action poison paralyze him the truth serum.
First off, C would involve interrogating Fu Xia publicly:
You still think Fu Xia is hiding something. You had refrained from interrogating him until you found more evidence that might point to him, but you have no choice now but to bring him into the spotlight for a public interrogation in a last-ditch attempt to fully solve the case even in the absence of that evidence... although you are not sure whether it will actually be fruitful at this point.
Any Jack Bauer-esque fantasies of torturing a confession out of him don't seem to be on the table. As for Xueguizi, Fu Xia wanted to infiltrate the Jinkong Sect, thus far he hasn't even mentioned the Xueguizi. Maybe you misread that bit.
Anyways, let's run through the list that treave provided. We've asked some of these questions before, but we haven't organized it in this way.
Kipeci Baltika9 Nevill Absinthe Tigranes ScubaV TOME Smashing Axe, maybe you guys can help me out here.
1. Both Fu Xia and Xiaofang left the restaurant. Did one leave after the other?
I don't know how we'd find this out. Any ideas, guys? If they left together, I suppose that would hint at some sort of collaboration between them and could point towards Fu Xia being the masked man, and therefore, Du Yao's killer.
2. What was it that Du Yao seemed to glean from his discussion with Jiang Zheng, and could it have played a role in his death?
Well, here's what Du Yao's daughter and Jiang Zheng had to say about the matter:
I had brought tea over to my father’s study in the inner yard, near the end of the xu hour. At that time, he was conversing with a man called Jiang Zheng. I did not plan to eavesdrop, but I overheard them discussing the Jinkong Sect and some manual. They paused their discussion when I knocked. When I entered the room, everything was normal. I paid my greetings and left.
...
“I have reason to believe he is not involved. He seemed to have discovered something during our talk, but he did not talk about it. Instead, he told me to return the next day, once he had gathered his thoughts. If you know Du Yao, you will know that there are some things that you cannot push.”
I'm still not sure what to make of this. I can't draw anything out of it with the scant info that we have.
3. Jiang Zheng snuck back into the manor on 'instinct' when Xiaofang did not turn up, and asked him to meet him at the manor instead of discussing it back at the inn. Was there a reason?
How did Jing not ask Jiang Zheng about this? This is stuff that we should know from our conversation with him. What were the orders that Jiang Zheng had intended to give Xiaofang?
4. Du Yao was injured with a constable's sword. If the purpose was to frame a constable, why was he not outright killed with one?
Poisoned ice needles that don't leave evidence behind are probably a better tool for an assassin. Furthermore, I believe that the killer was not a novice in the Hanbing Needle technique:
“Hanbing Needles (寒冰針, Ice-Cold Needles). It is a Xueguizi technique, where we make sharp needles from icy qi, drawing water to freeze from the air itself.”
“I see,” nods Lady Suien. “That would explain why the murder weapon could not be found. They melted. How long would a needle take to melt?”
“It can vary,” replies Xuezi. “Expert practitioners can make it last for longer, while amateurs can hold the needle together for no more than scant seconds.”
“Could they freeze poison in liquid form?” asks Lady Suien again. “Could they dip the ice needles in poison?”
“That is all possible,” says Xuezi. Then, she turns to you, a proud, arrogant smirk on her face. “See?”
I don't think that a novice could have dipped the ice needles in poison, gotten into a fight with Du Yao, then pricked him with a needle before the ice melted. A few seconds simply isn't enough time for that. The killer had above average
qinggong and was probably skilled at the Hanbing Needle technique.
5. Did Du Yao or any of the other parties involved have any connections with the Xueguizi who invented the Hanbing Needles that took his life?
I don't know, treave, can Xuezi tell us anything about that? The Xueguizi sell golden fox leaves to all sorts of people, did they have any dealings with Du Yao? This is information that we should have access too, no?
6. The poison did not seem to be part of the Hanbing Needles technique according to Xuezi. Is it something originating from her Xueguizi, or does it have another source? For that matter, could the troubles at Tianshan be connected with this somehow?
Well, it's not Wudu, and Qilin didn't recognize it at all, so I doubt that this originates from the Central Plains.
7. Xiaofang was late to meet with Jiang Zheng, yet he was seen after Du Yao's murder arguing with a man in black. Why?
He'd have to have known the killer. I can't think of any other explanation right now.
8. Was the man in black who fought Xiaofang the same person?
Almost certainly, yes. I highly doubt that two different people would have access to a rare Xueguizi technique that people in the Central Plains wouldn't be familiar with and use it on two different people on the same day. The person who killed Du Yao and the person who attacked Xiaofang are one and the same.
9. Were the injuries from the Jinkong Sect techniques inflicted before or after the poisoning?
Okay, what does Cao'er say about that? This should be available to us, no? However, even if I did know the answer, I wouldn't know what to make of it.
10. How did Xiaofang move from where he was in the alley to the sickhouse you found him in later?
Who knows?