"Officer Megure, look here. "
When everyone was outside, Conan walked into the bathroom and was pointing at the handrail on the side of the bathtub, the part next to the corpse.
"You little brat!"
Seeing Conan run in again, Mouri Kogoro was immediately furious and walked in with his fists clenched.
Seeing Mouri Kogoro coming, Conan immediately said: "There is no trace of blood here, isn't it strange? It's as if something was placed on it at the time. "
"Huh?"
Mouri Kogoro walked to the side and squatted down after hearing this. After taking a look, he held his chin and said: "Inspector, this is indeed the case. There is an obvious mark on the edge of the blood here, which means that after the blood was sprayed out, someone obviously wiped it off. "
"Could it be that..."
Megure walked into the bathroom and said, "Could it be that there was someone else in the bathroom at that time? This is not a suicide case, but a homicide case."
"Well..."
Masayo Aoshima said at the door, "Could it be the roll of tape on the ground? Didn't you find the tape on the ground?"
"That's right!"
Mouri Kogoro clapped his hands and said, "If he put the tape on the edge of the bathtub, and accidentally knocked it over when he committed suicide by cutting his wrists, this makes sense."
"Thank you so much, Miss Masayo. If it weren't for you, we wouldn't be able to solve this mystery." Mouri Kogoro immediately thanked Masayo Aoshima.
Masayo Aoshima chuckled and said, "No, I was just saying it casually."
"Captain!"
The police officer who was doing the test said, "We only found Miss Mina Aoshima's fingerprints on these tapes. On the cut of each tape, you can see the fingerprints of her index finger and thumb on both hands."
Hearing this, Megure immediately looked at Mina Aoshima at the door and said, "Ms. Mina, may I ask what's going on? Why are your fingerprints on the tape in the bathroom?"
"I...I don't know!"
Mina Aoshima was shocked when she heard this. She didn't understand why this happened at all.
"Wait a minute!"
Masayo Aoshima said anxiously. "Officer, you're not suspecting Mina of murder, are you? That's impossible. Mina and Kenji are getting married soon, and they're always very close. I've never seen them argue."
"Wait a minute,"
Mouri Kogoro suddenly said, reminiscing. "I remember there was a bag in the bathroom with a receipt for a convenience store purchase. I've seen it before. Everything on it was bought by you, Miss Mina."
Mina Aoshima replied, "Yes... yes, I bought it last night."
"I know!"
Mouri Kogoro clapped his hands, pointing a finger at Mina Aoshima, saying, "I know who the culprit is. It's you, Miss Mina Aoshima."
"What?!" How could it be possible?
Everyone was shocked, and Mina Aoshima shook her head in shock.
Mouri Kogoro said, "Last night, after Mr. Kenji left, Miss Mina, you, under the pretext of going to bed, asked him back and then killed him in the bathroom. She had intended to use a different detergent to kill him, but just as she was about to do it, she realized she had bought the wrong detergent, so she slit her wrists and killed him. My reasoning is absolutely correct, so just admit it, Miss Mina."
After hearing Mouri Kogoro's words, Qingdao Mina suddenly breathed a sigh of relief and was no longer so nervous. She said, "Mr. Mouri, I think you may have misunderstood. The reason I bought detergent and tape and other things was because my sister said she needed them for moving, so I went to buy them."
At this point, Mina Aoshima looked at Masayo Aoshima and said, "My sister asked me to buy a different detergent. When I bought it, I realized that if I was not careful, it would produce toxic gas, so I specially changed it. I changed it when I was about to pay. I think I will ask the people at the convenience store, they may remember it."
"Mina!"
Masayo Aoshima was startled upon hearing this, her mind in turmoil. Mina... Mina had actually discovered that the detergent was poisonous. Worried about her relationship, she had even changed the detergent, but she...
"Brother Takagi!"
Megure shouted, and said to Takagi Wataru outside the door, "Go to the convenience store right away and ask, and check the surveillance."
"Yes!"
Takagi Wataru saluted and ran away.
Mouri Kogoro was sweating profusely. He didn't expect that his reasoning was wrong. If Aoshima Meiinai was right, then she shouldn't be the murderer.
"Although uncle's reasoning just now was wrong, he was right about one thing, that is, Kenji was most likely killed after being called back by someone after leaving."
Conan pondered at the side: "Although if what Miss Mina said is correct, then her suspicion will be reduced, but this does not mean that she is not a suspect. There is no mistake, if the criminal is not Mina Aoshima, then it must be Masayo Aoshima, but what method did the criminal use to create this secret room?"
Turning his head and looking around, Conan frowned. If he didn't solve the secret room method, even if he determined who the murderer was, it would be meaningless because all the evidence would be invalid.
Walking out of the bathroom, Conan walked outside, preparing to go to the living room and other places to see if he could find anything.
Arriving in the living room, Conan turned around and looked. Walking to the corrugated cardboard box, when he saw the corrugated cardboard box, he was stunned and squatted down to examine it carefully.
"There are traces of tape."
After touching the traces of tape on the corrugated cardboard, Conan's mind flashed, and he immediately thought of a possibility. That was the source of the tape in the bathroom. It was entirely possible that the tape was removed from the corrugated cardboard, and Mina Aoshima could have cut off some of the remaining parts and kept them. Therefore, this is why there are only Mina Aoshima's fingerprints on the tape.
"From this point of view, the criminal is most likely Miss Masayo Aoshima, but why did she kill Kenji? And how did she kill Kenji?"
Conan was almost certain that Masayo Aoshima was the murderer, but he did not have conclusive evidence yet, and he did not know how to unlock the secret room in the bathroom. As long as he could find evidence and a way to unlock it, then the case could be solved.