Richard Castle:  Who 's Napolitano ?
Kevin Ryan: Oh , he worked with Raglan on a couple of drug busts . But he was at his daughter 's wedding the night Bob Armen was shot , so he 's not our third cop .
Richard Castle: Where is he now ?
Javier Esposito: He died of heart failure , back in _ 1993 _ . Why are you asking about Napolitano ?
Richard Castle: Uh ... he and Raglan are listed as the arresting officers on this report . But ... this has been altered .
Javier Esposito: What ?
Kevin Ryan: How can you tell ?
Richard Castle: Because I know typewriters . Older typewriters use cloth ribbon . If you look closely , you can see the striations in the typeface . Newer typewriters use film ribbon . Someone whited - out the assisting officer 's name on this report , photocopied it , and then typed in Napolitano 's name . It 's a cover - up , literally .
Javier Esposito: I 'll be damned .