"So, regarding the source of carbon monoxide, we haven't found it yet."
Upon hearing this, Mr. Ma suddenly stopped in his tracks.
He stood there, pondering for a while.
This weather, besides gas water heaters producing carbon monoxide, are there other possibilities?
Li Jian on the other end of the phone continued, "We are quite puzzled ourselves."
"Even the Jiangcheng fire brigade finds it strange, they couldn't think of other ways that could produce carbon monoxide."
The phone call fell silent for a while.
In the end, Mr. Ma remembered the initial conclusion made by the Jiangcheng Medical University on the cause of death, that both victims died due to alcohol intoxication.
He said sincerely, "We must clarify the cause of death for the two deceased."
"Absolutely!"
Li Jian immediately replied.
"Initially, after forensic examination at Jiangcheng Medical University, it's been preliminarily determined that the cause of death was due to alcohol intoxication."
