jeanine peery wanted to talk about the disappearance of his wife kathleen, before that could happen, berman was shot execution-style in the living room of her own. in a special edition of the he doesn t make many much about the bathroom confession. you said things under your breath before you probably didn t mean. i don t want to talk about the specifics because i understand. he killed three people. l.a. county has got a case. we ll address those facts within the courtroom. but generally speaking i was underwhelmed, honestly, judge. reporter: the hbo documentary also uncovered another piece of new evidence, a letter that durst sent to berman shortly before her killing. it has very similar handwriting and misspelling to anonymous note sent to the beverly hills police department spelled, beverley police department saying there was cadaver in