At that point, the team speaks to Jimmy in their department and they tell him they know what was between him and Coop. Jimmy uncomfortably denies it, and tells them that Eileen is probably still bitter over the divorce and they got it wrong. However, when Lt. John suggests that maybe someone else also got it wrong and did something to Coop, Jimmy tells the team that Owen Murphy may have had a hand in Coop's death, recounting an incident in the police locker room where Coop more or less outed himself in front of everyone there in a fit of rage when Murphy made homophobic remarks and compared Jimmy and Coop, "The Dynamic Duo", to the "homo" Batman and Robin. When Lily and Will sternly interrogates Murphy later, he claims that killing another member of the force was something he would never do. Instead, he tells them that he told 'Sarge', Coop's father Brogan, and that he expected him to "sort (Coop) out". Further investigation by Kat also uncovers dispatch records on the night of Coop's death. The person who sent Coop to his death was none other than his own father, much to the dismay of Lt. John Stillman, who takes the evidence from Kat.