At the police station, a commotion erupts as Audrey enters the men's locker room to tell Matt that he should put on some "real people" clothes. At his protest, she tells him that the station commander has already been informed, and gives him an FBI ID badge. They go in search of the man who killed Dr. Robert Fresco, an oncologist. The killer, initially suspected to be Sylar, is actually Theodore Sprague, a man with the power to emit radiation. He is found at the hospital with his wife, Karen, who is dying of cancer. When he realizes Matt and Audrey are police, he uses a nurse as a hostage and shield. Audrey threatens him with her gun, but he tells her he may go "nuclear" if she shoots him. He wants to be with his wife; the doctor's death was an accident, he says: Theodore was trying to persuade the doctor to do more for his wife. Matt can hear Karen's thoughts, even though she is in a coma, and he allows Theodore a final conversation with her. This calms the man down, and he releases the nurse, who has burns on her arm where Theodore was holding her. Theodore then allows himself to be taken into custody.