Watch as Nancy Grace speaks to Isabel Celis’ neighbor Alicia Stardevant, who remembers hearing male voices and dogs barking early in the morning of the day that Isabel went missing. She found out two hours later that Isabel was, in fact, missing.  Stardevant goes on to say she remembers the window being wide open that morning and that she was woken up by her dog and the dogs from the Celis house who were all barking loudly. Watch this exclusive clip from the show.