Good catch -- what was that referring to??
Rachel was explaining her answers in the 'depo' (deposition) regarding whose voice she heard yelling for 'help' over the phone.
She went on about how she told them it was Trayvon, how she 'thought' it COULD be Trayvon, because he had this 'high' voice he SOMETIMES used, and then... at the end she said something to the effect of "but it's not."