Side 2

On May 11, 2001, a robbery and murder occurred in Dongshan City that shocked the country. The murderer killed three credit union workers, used oxygen cutting technology to open the vault door, and escaped after robbing a huge sum of 2.65 million yuan. After the incident, the entire Dongshan public security system was shocked: the murderer did not leave any conclusive evidence and committed a perfect crime. The public security system quickly established a task force and mobilized all police forces to widely offer rewards for clues in major cases. For more than two months, the almost carpet-like investigation work led to the suspicious characters being pulled out of the water one by one. In the face of money, they showed their greedy and cruel nature, taking risks and carrying out their evil plans one by one. However, although they all had criminal motives, they had no chance of carrying out "5.11". The criminal police became suspicious of Ma Mingxin, the brother-in-law of the credit union victim Liu Lihua. In the eyes of others, Ma Mingxin was an extremely timid and cowardly person who lived a frugal life, cared for his family, and was filial to his elders. However, from Ma Mingxin's life experience, personality, and way of doing things, the criminal police saw the shadow of a criminal who was bold, careful, decisive, intelligent, and physically capable. Although the inference was not confirmed by the expert group, the criminal police still insisted on pursuing the criminal step by step. Ma Mingxin