Given the task definition and input, reply with output. In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.

Pleasant explains Vassey's guilty conscience may lead him to confess to Coakley. Pleasant promises to help Denton renegotiate the terms of the settlement with his ex-wife if he kills Vassey. At his house, Vassey denies the rumors. As Vassey falls asleep, Denton begins to suffocate _him_, only to be interrupted by Charlotte Boyd, Vassey's hospice nurse. <sep>, Pronoun: him
Vassey