 Sawyer is forced to scale the outside of the building to access the security panel for Zhao's penthouse, then enters and confronts Zhao.Zhao explains that Botha had extorted money from him during the $6 billion construction project.When Botha learned that Zhao kept a detailed computer file of the transactions, which can reveal accounts and names of three crime syndicates Botha works for, the attack was instigated to get the records.