The Listener Season 1 Episode 9 : Inside Man
Toby and Oz are called to a crime scene only to find Wade and Wendy Lassiter fatally stabbed. As Toby examines the crime scene, he telepathically senses there is someone else present, the son of the two murder victims. Toby and Detective Marks' search for the murderer is complicated in that Andy is not only deeply traumatized, but may also be suffering from a mental condition. Meanwhile, Olivia's over-bearing sister Jennifer comes for a visit and Olivia asks Toby and Oz to run interference so that the two don't end up alone together.