But Ma Guochao is, after all, just an ordinary doctor.
Faced with Chen Jiang's questions, he didn't hold out for long before he confessed everything he knew.
People like Ma Guochao simply can't keep secrets when facing interrogation.
Many normal people think that if they don't say anything when questioned by the police, won't that just be the end of it? Won't the matter be over?
But in reality, only those who've truly been in an interrogation room and faced police questioning know it's not that simple.
When facing inquiries or investigations from relevant departments, even ordinary people find it hard to hold back.
The reason many cases unravel like pulling up a radish with dirt is that the person being interrogated becomes too nervous, blurting out not only their own matters but others' affairs too.
And there's no stopping it; sometimes even the relevant department personnel get scared.
