How have the courts interpreted statements made by police officers in an interview with defendant in an assault case?

While speaking with defendant, the officers asked him, "[H]ypothetically if you could tell us where she is, wherever that may be, and hypothetically the DA's office would be willing to somehow grant you some kind of immunity and make you a witness, would that be a good deal hypothetically speaking?" Defendant argues this statement, along with other similar statements, implied defendant would have immunity for whatever he told the officers. When considering whether an officer's statement conveys a promise of leniency, we "do not consider the words spoken in a vacuum but in the context of the conversation." (People v. Ramos (2004) 121 Cal.App.4th 1194, 1203.) After considering the entire conversation, we conclude no such implied promise was conveyed.