The middle-aged man's gaze lingered briefly on Jiang An. After hesitating for two seconds, he asked, "How did you determine they died of carbon monoxide poisoning?"
Jiang An answered concisely, "Indeed, the scene didn't show conditions for carbon monoxide poisoning, especially since it's not winter, and there were no signs of a water heater burning."
"However, when I re-examined the body initially, I found the corpse's lividity was bright red."
He paused for a moment and continued, "Of course, the faint red lividity made me a bit suspicious."
"Therefore, during further examination of the body, I attempted to extract the pectoralis major and conducted further testing on the carbon monoxide hemoglobin within."
"Indeed, a large amount of carbon monoxide hemoglobin residue was found in the pectoralis major, and it was confirmed that he died from carbon monoxide poisoning."
Upon hearing this, the man opposite showed a look of disbelief.
