The sentence you provided contains a direct quote that may not be accurate or official. A more precise translation would depend on the actual wording used in an official statement or context. However, translating your sentence directly: "Putin said, 'I will hang Saakashvili.'" It's important to verify such statements from reliable sources as they can have significant implications and require careful interpretation. If this is meant to reflect an official statement or interview, checking the exact words and context is crucial.