glimpse of what s happening behind the scenes in the documents investigation. prosecutors are reportedly laser focused on a witness that could lead them directly to the impeached disgraced president himself. and witness for prosecutors is walt nata who worked as a valet and cook when trump was president and him later personally in mar-a-lago. the president s private residence in florida. prosecutors have indicated they re skeptical of an initial account he gave investigators. that s according to two people briefed on the matter. and here is what prosecutors hope to learn from nauta from the timers reporting, quote, security camera footage obtained by investigators showed mr. nauta moving boxes out of the storage area at mar-a-lago. raising the questions about whether they were moved at trump s behest, to conceal them from the authorities. or trump s own lawyers who were dealing with demands that he return the documents. both the justice department and the attorney for walt na