was it possible that an innocent young woman in the thrall of a con artist and killer? sarah dutra seemed so frightened, so emotional. and, yet, thought the detective -- >> i felt a little bit over the top. >> reporter: she was a little bit over the top? >> yes. >> reporter: you mean she was acting, putting on? >> i believe so. >> reporter: after more than nine hours of questioning, sarah dutra was arrested and charged with larry's murder. it was a classic crime story. two killers, mutual finger pointing and prosecutors knew they could use each woman's testimony against the other, an easy check mate, that is until elisa took herself off the board. on march 30th, 1 days after her arrest, a jailer found her hanging by the neck in her