Invisible Sight

The warehouse

"Yes."

"What! That's impossible. How was he poisoned in prison?"

"Let me say. Kush's death was due to poisoning. But the poison is quite unknown. His face turned blue, but I didn't find nitrate elements in his body. Again, I did not find mercury-like poison in his body, which caused a heart attack. I didn't find any substance in his body that caused his death. That's why I went in search. "

"Did you get the answer?"

Emir's voice is anxious. He wants to know the cause of Kush's death. Kan shakes his head and says,

"Finally, Kush has been given potassium chloride. Potassium chloride is a type of medical salt. It can be applied as a medicine, as well as a poison. But the killer did not give it to him with food and was supplied to his cell in a gas form as the autopsy was not done immediately. So, this substance has merged with his body gracelessly. Very sharp move."

"Then why was his face turned blue?"

"That's what I've thought about, too. When suffocating, the human vein takes the for