Death Note: Desu nôto - Season 1 Episode 3

With "Raye Penber" still following him, Light realizes that L's phone call was in fact a trap. Light becomes determined to kill all the FBI agents involved in the Kira case in order to disperse suspicion on him. In the midst of his planning, Light remembers finding a picture of Cathy Campbell, the name of Raye's lover, during the bus-jacking incident. Meanwhile, Misa sacrifices half of her remaining lifespan to Rem in order to receive the shinigami eyes, allowing her to see the real names and lifespans of anyone she looks at. Since a human with the shinigami eyes cannot see the lifespans of someone who owns a Death Note, Misa is able to deduce that Light is Kira after spotting him at one of her concerts. Later, Light is able to blackmail Raye into writing the names of the other FBI agents into pages of the notebook by threatening to kill Cathy. However, Raye eventually sees through the plan and tricks Light into revealing himself to be Kira. Misa, who has been following Light without his knowledge, kills Raye by writing his real name, Mark Dwellton, into her notebook.