Bones Preview: Brennan Identifies With a Murder Suspect in "The Signs in the Silence" Tweet April 28, 2011 by Laura Related: Bones, Sneak Peek , Season 6 Episode 21 Credit: Is the 15-year-old Jane Doe found on the streets covered in blood and wielding a knife really responsible for a recent murder? Brennan (Emily Deschanel) abandons her usual objectivity to dig in. | Original Air Date: May 5, 2011