What exactly happened?

"What? A sacrifice?" This was the first time that Jecca had heard such a surprising speculation since the beginning of the investigation. He immediately exclaimed,"my God!"

"If I'm not wrong, the place where the three victims offended the murderer should be in Liberation Square!" Zhao Yu said,"the murderer took great risks to bring the three dead people to Liberation Square and then took their hearts. Isn't this a revenge operation with a clear motive?

"Removing the heart is obviously an execution. So, the place we should focus on is not walikana, but this Liberation Square, or ... The eastern Palace you mentioned?"

"The old palace!" "It was built for the king during the rule of the Austro-Hungarian Empire!" Said Jecca.

"Alright!" Zhao Yu said,"next, what you need to investigate is whether there were any murders in this Palace in the 1990s. And this incident is related to the wallet?"