After Vergil, a subroutine of the AI that maintained New Mombasa's infrastructure, prevents Kinsler from killing Branley and recapturing Sadie, Kinsler responds by shutting the AI down. When Sadie escaped from him with the help of Kinsler's driver, Mike Branley, Kinsler swore revenge on both of them.
The first time Sadie encounters him, Kinsler reveals his intention to rape and kill her.