Episode 87 of "Without a Trace"
s04e17 Check Your Head

While casing Rachel's apartment for clues, the team ponders the relevance of a walkie-talkie, a box of bullets and a stack of letters from an array of prisoners and oddballs who were seeking her advice and/or threatening her. As they theorize if she fell prey to an obsessed fan or a recently released convict who had been calling her, they also consider the fact that, as a result of her condition, there was an endless stream of delivery and service people coming to her apartment.