berman's home in 1999. it too was written in block letters and misspelled beverly hills. watch. >> what does that say to you? >> i mean, the writing looks similar and the spelling is the same. so i can see the conclusion the cops would draw. the right person would conclude they were both written by the same person. >> i'm searching for a way to figure out how you didn't write the cadaver note that is so similar. >> well, what i see the similarity is the misspelling in the beverly. other than that the block letters are block letters. >> so you wrote one of these but you didn't write the other one? >> i wrote this one, but i did not write the cadaver one. >> a forensic document expert says the letters were written by one person. former prosecutors say the letter alone was enough to