How to choose which group the rumor detective real murderer is in?

In the group that received the text message.

It is rumored that Shao Qing is the mastermind behind the entire detective story. At the beginning of the game, people are divided into the group that received the text message and the group that did not receive the text message. And Shao Qing was in the group that received the text message.

Rumor Detective is a classic text-based detective mobile game.