houston and in it they believe it will indication durst's efforts to flee law enforcement, to avoid apprehension and prosecution for the murder of susan berman. berman served as a spokesman for her millionaire friend when he was being questioned about the 1982 disappearance of his first wife kathy. 18 years later berman was gunned down in her los angeles home just as she was scheduled to talk to new york authorities about the newly reopened cold case. >> i can easily see writing that letter. >> reporter: and the recent hbo letter "the jinx" producers confronted durst with the letter he wrote to berman before the death. >> did you write the cadaver note? >> i did not. >> reporter: challenging him to explain the similarities between had it and the anonymous letter to police telling them where to find the body. >> the same misspelling. >> reporter: can you tell me which one you didn't wrote? >> no. >> reporter: it was concluded