The Idiot Part 2 Chapter 5 Page 13

was going. A minute later he was still moving on, but without knowing anything. He could no longer think out his new idea. He tried to take an interest in all he saw; in the sky, in the Neva. He spoke to some children he met. He felt his epileptic condition becoming more and more developed. The evening was very close; thunder was heard some way off.

The prince was haunted all that day by the face of Lebedeff’s nephew whom he had seen for the first time that morning, just as one is haunted at times by some persistent musical refrain. By a curious association of ideas, the young man always appeared as the murderer of whom Lebedeff had spoken when introducing him to Muishkin.

Yes, he had read something about the murder, and that quite recently.