"No, I almost never go. Sometimes Aunt Yan asks me to come up to help, so I only go once in a while."

The inquiry about the security guard of the Liang family was relatively simple. Su Le and the others learned that Ms. Liang came home at a little after ten o'clock on the night of the 25th. After returning home, Ms. Liang went directly to the second floor. The security guard in the building heard Liang downstairs.

There was a sound of the lady locking the door, and then the security guard walked to the door on the second floor according to Liang Shi's instructions and confirmed that the door was indeed locked.

The two security guards in the building checked all the doors and windows before going to bed, and made sure that the doors and windows were locked before going to sleep. They did not hear any movement during the night.

The four security guards outside the building locked the door after Ms. Liang returned home on the night of the 25th. As usual, they took turns patrolling the yard. It was very quiet that night. Except for the sound of explosions in the distance, the small courtyard

Nothing happened there.

Technicians checked the surveillance video of Liang's house and found nothing suspicious in the video on the night of the 25th. The alarm system of the electronic fence on the wall had no alarm records that night.

After completing the questioning of everyone in the Liang family, Su Le and Liang Fu went to the second floor of the small building to conduct on-site inspection. They found that except for a bedroom, a study room and a reception room, the other rooms on the second floor were basically empty.

They were all empty, with only a few simple pieces of furniture placed there and no signs of use.

There is a water dispenser and a pantry in the bedroom, study and reception room. The pantry is filled with tableware, tea, coffee, honey and other drinks.

Su Le and Liang Fu carefully inspected every window on the second floor and found that all the windows were equipped with insect-proof steel mesh, and each steel mesh was locked from the inside. Not to mention that people from outside could not come in through the windows.

Even if someone inside wanted to get out through the window, it would be impossible without the key to the insect screen.

After Su Le's investigation, the technicians inspected and sampled all the tableware, food and water dispensers on the second floor, and carefully extracted fingerprints from the furniture, door handles and other items on the second floor.

"Oh, this second floor is simply a secret room!" Su Le said to Liang Fu when he came out of Liang's house.

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"Yes, judging from the current situation, your girlfriend cannot be cleared of suspicion at all." Liang Fu smiled and winked at Su Le.

Su Le ignored Liang Fu's teasing, looked up at the blue sky and white clouds above her head, and let out a long sigh.

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