Once you've committed a crime, this is what happens. You tell one lie, then you need a hundred lies to cover it up.
Zhao Zhijun might have seemed quite shocked and genuine about Yang Qianqian's death, not at all like he was pretending, but there's a logical issue with him saying he saw Yang Qianqian on Thursday.
"Zhao Zhijun, I advise you to be a bit more honest. Even if you're making things up, at least make it sound believable. On Wednesday of last week, you killed Yang Qianqian and then dismembered her."
"And yet you say you saw her on Thursday?"
"Who are you trying to fool?"
"Officer, there must be some misunderstanding here. I'm really not lying to you, every word I said is true. I did see Qianqian on Thursday."
"Thursday?"
"Zhao Zhijun, I'll say it again: Yang Qianqian was killed on Wednesday. How could you have seen her on Thursday? You should at least come up with a better excuse to lie."
