A decoy to hide the real culprit
" So was this woman close to Liu Fei Fei?" Liu Hui Ying asked while she was examining consort Su's body. The way the woman died was too similar to that of Liu Fei Fei, though she was not tortured for an entire night, she was indeed killed by being pushed into the pond from the back of her neck and what was even more interesting was that the culprit did not kill her at once.
They played with her for a very long time, even though they covered consort Su's neck with a cloth to stop their fingerprints from being imprinted on her skin, Liu Hui Ying could see faint impressions of fingers on the skin at the back of consort Su's neck.
It was quite clear that the murderer did not kill consort Su in one swift kill, instead, the murderer pushed her in and out several times before she died on her own.