"Old ...... Husband? Mrs. Tsujimura looked at her husband who had fallen to the ground in horror.

"Don't move!" Hattori said sharply.

He stepped forward a few steps, lowered his body to probe Tsujimura's snort, was silent for a moment, and shook his head.

"It's useless, he's dead." Hattori turned his head to look at Xiaolan, "Xiaolan, go and call the police!" ”

His lips had just turned purple. Conan struggled to clear his mind, and ...... He looked at an extremely inconspicuous needle hole in the deceased's neck, poisoned?

Conan lowered his head, searching the ground, when suddenly, his head slammed into a man.

"......" Asa Yu held a needle in his hand and watched speechlessly as the two of them collided together.

…… I've got everything, what are you two looking for...... Asa Yu was speechless for a moment.

Hattori Heiji gritted his teeth and picked up Conan, and shouted angrily, "How can this little ghost be in this place? ”

"Ah, Conan!" Xiaolan hurriedly ran over.

"Xiaolan, take care of this little ghost!" With that, Hattori threw Conan into Lan's arms and said dissatisfiedly, "How can you let a child see the corpse?" ”

"......" Asa Yu glanced at Conan, who was sweating profusely, with a little worry, but didn't say anything.

Moment.

"The deceased's name is Isao Tsujimura, and he is 54 years old." Officer Twilight took notes, "Besides, there's a detective there," he said, glancing back at Mori Kogoro, who saluted proudly. "So, this is a murder?"

"Hmm...... The deceased apparently had no external injuries on his body, so he probably died of natural causes, right? The conclusion made by Maori Kogoro made Asaba suddenly make a conclusion that "uncle is brain-dead".

"Please, you can see clearly, okay!" Conan exclaimed, "This is obviously ......"

"Poison." Hattori Heiji hung his head and said lightly, "There is a red spot on the deceased's neck against the root of the hair, and besides, the murder weapon is still here, right?" Penis? As he spoke, he turned his head and looked at Asa Yu with a hint of a smile.

"Hmm...... Well! While smiling innocently, Qianyu handed over the iron needle he had picked up, but he couldn't help but be vigilant in his heart, but he didn't expect to underestimate him! Kansai's Hattori is worthy of its name!

"And," Hattori looked at the corpse's fallen but still supported arm, and said lightly, "Although this uncle was holding his cheek when he died, in my opinion, I am afraid that he was stabbed to death with a poisonous needle, and then deliberately posed in this pose." ”

"Well, there is also the possibility of suicide." Kogoro's IQ dropped again.

"What, don't you understand it now?" Hattori Heiji frowned, and he didn't want to say another word to this uncle, "The lips and fingertips of the deceased in this corpse have turned purple, and there are blood spots on the conjunctiva of the eyes, these are all evidence of suffocation, but there is no sign here that the deceased was strangled or drowned and struggled in pain, therefore, most likely, the murderer used the toxin to paralyze the nerves of the deceased, causing him to suffocate to death, and with a highly toxic poison that caused immediate death, in addition, there was residual temperature from the deceased's body, And with no postmortem stiffness or corpse spots, he must have been poisoned by someone within thirty minutes of our entry into the study. ”

That's right. Conan and Asa nodded at the same time. The manifestation of the deceased is precisely the symptom of poison suffocation.

Officer Twilight touched his chin, "So, all the windows in the study are locked from the inside of the room, and it's impossible to get out of the room, so this door is the only entrance......" As he spoke, Officer Twilight turned his head to look at Mrs. Tsujimura, "Madam, there should be several keys in this study, right?" ”

"No," Mrs. Tsujimura shook her head, "there are only two keys to the study. As he spoke, he reached out and took out a key with a key ring from the bag he was carrying, "One is this one in my hand, and the other is on my husband." ”

"On your husband?" Officer Twilight was taken aback.

"Well," Mrs. Tsujimura nodded, "my husband is used to keeping it in his trouser pocket. ”

"Is that so? Then I'll make sure. Officer Twilight turned and walked over to Mr. Tsujimura's body.

Officer Twilight reached into the body's trouser pocket and fumbled, "Really, it's bulging." With that, Officer Twilight pulled out of Isao Tsujimura's pants pocket.

"Double pockets?" Asa Yu's eyes froze.

Officer Twilight pulled out the bulging thing, and it was the same key as the one in Tsujimura's hand!

“！！！” Everyone froze.

"How...... How can it be? Officer Twilight exclaimed in shock.

"This ...... Is this called a locked room killing? Maori Kogoro was shocked.

Murder in a closed room?! The hearts of all those present were tight.

Conan only felt hot and dizzy, and even a buzzing sound came out between his ears from time to time.

"Now...... But it's kind of bad......" Beads of sweat ran down Conan's forehead, and even his sideburns were soaked, "I'm still ...... Hurry up and put ...... Let's solve this case! ”

"This ...... How is this possible? Mori Kogoro muttered.

Hattori Heiji looked at Maori Kogoro's expression, his eyes narrowed slightly, and he sneered in his heart.

Sure enough, the reasoning of this uncle who was recently published in the newspaper is not his thing at all, it is Kudo Shinichi! The figure in the blue suit once again appeared in Hattori's mind, all the cases were solved by him, this mediocre uncle secretly contacted Kudo and asked for his help to solve the case, this time it is estimated that this time it is also the same, very good, who will solve this secret room murder incident first, let's see, Kudo Shinichi! There was a glint of confidence in Hattori's eyes.

Xiaolan looked at Hattori with a confident smile on her face in a daze, and was stunned for a moment.

He's like Shinichi! Xiaolan said silently in her heart.

"The time of the crime should be between half past three and four o'clock." Hattori stood up and looked at everyone, "In short, now should we find out as soon as possible the alibi of the person who may have committed the crime during this time!" ”

Wrong. Asa Yu frowned, two keys, one was locked indoors, and the other was in the hands of Mrs. Tsujimura, how did the murderer kill Tsujimura Xun? How did you get the key back into Mr. Tsujimura's pocket? Or maybe the keys didn't go back to the pocket at all?

The keys didn't even go back to your pocket?

Like a bolt of lightning flashed through Asaka Feather's mind, he suddenly raised his head and looked at a person.

"Do you mean ......?"