So...

As the first person to discover the scene, Xiao Hu's testimony is very questionable.

If the criminal was not him, then it must be the person who called him.

at this point...

Whether it was Makoto Sakaki, or Conan, Kid, and Hattori, they all thought of it at the same time.

Hattori escorted the man with a small moustache back to the ground.

On the way, Sakaki Makoto went to the coffee shop he mentioned and took a look. Business was pretty good. At noon, there were more than a dozen customers sitting in the shop. They were all white-collar workers who worked nearby and came here to have a cup of coffee and a sandwich during their lunch break.

There was nothing special about the coffee shop. According to the waiter's description, the man with a moustache had been in the shop since morning and had never left except just now.

After obtaining this key information, Makoto Sakaki turned around and went back to the car.

At this time, the police Xiaolan called had arrived at the scene and were evacuating the onlookers.

Hattori Heiji, wearing a baseball cap backwards, is explaining his reasoning to everyone:

"Just tie the body with a rope first, tie the other end to the handrail of the roof door, and wrap the body in a plastic bag to prevent it from attracting the attention of passers-by..."

“Once everything is ready, call this gentleman again, and when he opens the roof door, the rope will fall off the handle, causing the body to fall.”

While listening to his reasoning, Sakaki Makoto examined the body.

The deceased was a slightly bloated middle-aged man with wide-open eyes and traces of ropes around his neck. He was stabbed directly in the heart with a dagger. Judging from his clothes, he was not wealthy.

Determine the appearance first, then check the features:

The eyeballs are flat, the pupils are completely cloudy, dilated and have lost their luster; the body is cold, and the muscles begin to become soft, but have not yet completely softened.

The surface of the corpse was covered with purple-red corpse spots and had a slight stench. Sakaki Makoto took the gloves that Conan was about to put on and put them on his own hands in front of his confused eyes.

After gently pressing the corpse spots, Makoto Sakaki found that the corpse spots had been completely fixed and did not fade after being pressed.

So far...

He has already made a rough guess about the cause of death.