Lu Chuan explained his reasoning, but it was not evidence.
And this conjecture of Lu Chuan's was actually considering things from the killer's perspective.
If Lu Chuan were the murderer, how would he get carbon monoxide into the car without being detected? This was the only way he could think of.
It's called a hypothetical killer.
"Old Lu, assuming your guess is correct, who could open Wang Chuanzhi's trunk without him knowing?"
"And even tamper with it to place a carbon monoxide generating device inside?"
Zhang Hui asked questions that clearly pointed in a certain direction.
Family or someone extremely close to Wang Chuanzhi.
Otherwise, how could someone open Wang Chuanzhi's vehicle trunk?
"And, about this carbon monoxide generating device... is it difficult to make?"
Two questions.
Lu Chuan's conjecture faced two difficulties.
The first was who could open Wang Chuanzhi's trunk without alerting him.
