張松
Fa Zheng, Zhang Song and Meng Da set into motion their plan but they worried that Liu Bei would leave. They said to him that now that success is near, how could he give up and leave. At this time, Zhang Su(張肅), Zhang Song's brother, discovered his brother's secret communications with Liu Bei and reported the issue to Liu Zhang. Liu Zhang was furious and stunned when he heard that Zhang Song had been helping Liu Bei to take over Yi Province from him – he executed Zhang Song and ordered his officers guarding the passes to Chengdu to keep secret documents and letters to Liu Bei.