Author's POV

The next day after the Crime Investigation Unit met up with Jin, they were called into the Toxicology lab to discuss the content results of the perfume bottle they found in Koo Sunghe's bag.

The unit entered the forensics building taking the lift to the 3rd floor. As soon as the door opened, the unit was introduced to a strong smell of different chemicals that harshly assaulted their noses. Walking further in, Namjoon tapped his ID on the scanner as the door opened to a lab.

The lab was a large ventilated room with a variety of machines placed on the tables. Chemicals in glass flasks and translucent white containers, all sat in closed shelves as they added colour to the pale room. 

A man stood in front of a printer as a report was printed out. He examined through the results carefully before looking up to see the unit watching him. 

"Hi guys. Right on time, the toxicology results just came." He said as he walked up to the unit and greeted the new face. "Hello there, I'm Min Yoongi, Head of Toxicology, but you can call me Suga."

Y/N shook his hand and introduced herself for almost the tenth time. "Hi Suga, Yoon Y/N. Nice to meet you."

He gave the toxicology report to Namjoon to examine after knowing the exact results himself.

Final Outcome: 2.55g of Dimethyl Mercury found in the contents of the perfume bottle provided by the crime investigation unit through the medical examiner in- charge. 

"Dimethyl Mercury?" Namjoon asked as he looked up from the paper in front of him.

"Exactly. Dimethyl mercury is a very toxic colourless liquid which is one of the most dangerous neurotoxins. It is so strong that even a very little amount can lead to mercury poisoning. In a human, it absorbs through the skin very easily, and it can also penetrate through rubber and plastic. Since the bottle was properly secured in glass, I'm sure that you are safe from its exposure." Suga explained with a low and serious tone. 

"But as far as I know, this type of poisoning is kind of serious, then how did she not show certain signs of its side effects?" Y/N questioned as she scrunched her eyebrows.

"Well, there might be a possibility that the effects only showed when Koo Sunghe was at her office and that's when she died. You could probably run the time of death through Jin." Suga clarified.

Taecyeon, Hyungsik, and Woozi made their way back to the office to run their search through the records. 

"Koo Sunghe's family are in no state of talking right now. I'll go to her office and ask the friend if she knows anything about this perfume bottle. You come with me." Namjoon said to Inyeop before trailing his eye to Y/N. "And take her too as long as she doesn't come in front of me. The day is already hectic and I don't want her to worsen it." He walked off after he finish talking, leaving Y/N unsure of her own expressions. 

"What is that guy's actual problem with me?" She asked as she turned to Inyeop. "Seems like something really did happen to him and that took away his humanity, his chill pill and his good side. If he even has a good side." Inyeop let out a little chuckle as the two exited the building and headed to their car. 

∘₊✧──────✧₊∘

Namjoon sat in his car waiting for Inyeop and Y/N to arrive. He pulled out his brown leather wallet and reached for the last unseen fold. From there, he took out a half ripped polaroid photo of himself with somebody. The person's face was not clearly visible but it was sure that the person in the photo was a girl. Namjoon continued to stare at the photo as past memories fogged his brain. 

A memory flashed in his mind from the time when he was running in the flower fields with her despite his hay fever allergy just because she liked daisies. He closed his eyes as he mumbled out in mental exhaustion. "If only you would come right now." 

Knock. Knock. Knock...

With her face still lingering in his mind, Namjoon opened his eyes to a new face. A face that he didn't want to see recently, Y/N. This was the first time he had looked at her closely and examined her features. Her big round brown eyes, her rosy cheeks, her vibrant skin, her oval face shape, and her pink plump lips. 

Wait, was he admiring the girl he wants off his team?...

He got out of his car after realising that Inyeop had arrived already with Miss annoying here. The three decided to go into the office building and start questioning Woori about anything she knew about the perfume bottle. 

Walking into the marketing division of the company, Woori sat at her desk and repeated a constant cycle of working and then zoning out in thoughts. Looking at her, Y/N felt sad at Woori's condition because she didn't only lose a best friend, but she also lost a sister-like figure. 

"Woori?" Y/N approached her as Woori looked up from her computer. "Hi, we're here to ask you a few more questions about Sunghe if that is ok with you."

Woori nodded her head as she requested the officers to sit down. "I'd be happy to help if it helps you guys finding out about the tragedy that happened to Sunghe."

Y/N and Inyeop sat down with Woori while Namjoon saw Jiyeon throwing gazes at the officer from a far. 

"Carry on with the questions," Namjoon said to Inyeop. "I'll be back." With that, Namjoon turned to Jiyeon's direction and started walking towards her. His slow steps and cold gaze was always quite terrifying if that meant that he would get something out of his questionings. 

"You know something about Koo Sunghe don't you?" Namjoon asked as he crossed his arms and leaned back on the handrails of the staircase.

Jiyeon looked at Namjoon and spoke up. "I have the right to remain silent detective"

"You do know that by saying that you are only putting yourself in trouble because you will be the one getting suspected for knowing something and not saying it?" Namjoon asked her.

"Like I said, I have the right to remain silent, detective." There was a long pause between the two as the silence felt like a war in their minds. "Well if you are done with your questions, I'll get going then. Everybody has work to do." The woman turned away and clicked her heels on the floor walking and disappearing in the distance. 

After talking to Jiyeon, Namjoon knew that Jiyeon knew something about Sunghe's murder that probably nobody else knows about. 

∘₊✧──────✧₊∘

On the other hand, Inyeop and Y/N continued their questioning with Woori. 

"Did you guys find anything about Sunghe's case yet?" Woori asked with a shining glimmer of hope in her eyes. 

"Yes, we found marks of spray on her body and we found that it was caused by a perfume. Did you perhaps know anything about the perfumes Sunghe used? Maybe a perfume bottle without any labels or brands on it?" Inyeop asked her as he clicked his pen against his chin.

"I've seen her spray herself constantly with this one perfume for a long time now." The girl replied.

"Well, that same perfume bottle had dimethyl mercury in it." Y/N finally disclosed their findings before her.

"Dimethyl mercury? Isn't that harmful for the body if even a drop of it entered the body? Its contact on the body can be extremely harmful and kill overtime." Woori blurted out the facts as Y/N and Inyeop both look at her in confusion of her chemical knowledge. "I was a really good student in chemistry. I wanted to become a scientist but my parents didn't have the money for it so here I am."

Y/N gently put her hand on Woori's shoulder. "I'm sure you would have made a great scientist." Woori gave Y/N a weak smile. "Now, by the looks of the bottle, it seems that someone put the dimethyl mercury in there on purpose. It doesn't seem like its done in the place the perfume was made." 

Hearing this, the colour on Woori's face flushed away. "Woori? Is something wrong? You look lost." Inyeop asked her as he looked over to Y/N getting a hint of suspicion from the girl.

Woori snapped out of her thoughts and looked at the two. "Yeah. I just seemed to remember something about that perfume." 

"Really? What is it?" Y/N's grew as she paid attention to Woori's words. 

"Sunghe has been using the same perfume for a very long time and that it was gifted to her by her husband. That perfume is hard to find because it had no labels on them and whenever I asked Sunghe about that perfume, she told me that her husband got it for her. She didn't even know much about the perfume. She just used it saying that it had a nice scent to it."

"Her husband? And what's his name?"

"Juhyung. Kang Juhyung. As far as I know, he used to work for a pharmaceutical company but now, he's currently unemployed."

Inyeop jotted everything down on his notepad. "Thank you for all the information and your time. We'll get in touch with you if we need any more information."

∘₊✧──────✧₊∘

Y/N and Inyeop met up with Namjoon and told him their new findings to the case. They had finally found a new lead that can help them figure out what happened to Koo Sunghe. 

"Let's go back to the unit. We need to start jotting down the connections."

The three went back to the seventh floor of the station as they met up with Woozi, Hyungsik and Taecyeon who were working hard to finding more clues. 

"Guys." Namjoon called out as he entered the unit office. "We've got information on the perfume bottle. Jo Woori has given us information that the perfume was used by Ko Sunghe for quite some time now. Call Suga so we can race the timeframe of the contents."

"On it." Hyungsik said as he clicked away on his computer. "And... we're up." Soon, a video call was connected with Suga in the toxicology lab and the CIU office (Crime investigation Unit). 

"Hi guys.. what's up?"

"Hey." Namjoon stepped up and summarised the unit's findings so far. 

Hearing their case connections and findings, Suga gave his final thoughts on the perfume bottle contents. "Despite Koo Sunghe using the same perfume for a long time. The dimethyl mercury was most probably present in the perfume bottle that we now have. Judging by the amount left in the bottle, Sunghe must have used this perfume about seven times already and that was enough to kill her."

Namjoon nodded his head, taking in all the information before putting out his orders. 

"It's time to summon Kang Juhyung for questioning..."

💜𝒜𝓃𝑔𝑒𝓁 𝑀𝒾𝓈𝓉𝓎💜

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