Mike and his partner, Kelsey Walker, immediately investigate Abby's disappearance. Although he initially denies any knowledge of Abby's disappearance, Tad shows up at the police station the next day and identifies Darrell, a former suspect and Carl's co-conspirator, who he saw at the diner. Mike and Kelsey interrogate Darrell, but Mike physically assaults him and is taken off the case. Mike breaks into Darrell's house and finds a list of pharmaceuticals that Darrell has supplied to Carl, before Kelsey shows up to back him up. He takes the list to the hospital and has a brief conversation with Carl, who works as a cook there. Darrell's boss tells Mike that Darrell has not shown up for work and the list of drugs is written by a non-professional. Mike calls the company on the back of the list in the hope of finding him, but they are too busy to immediately respond.
