C399 Insane
Xiao Hongfei wasn't a forensic doctor. He didn't expect Xiang Junbo to be so crazy, so the investigation only involved a few neighbors.
It was confirmed that the mother died after Han Muyang's men left. It was obvious that the mother was killed by Han Muyang's men.
Xiang Junbo's father committed suicide out of grief. Naturally, Han Muyang would be suspected if such an outcome were to occur