They moved to Grayson's private study, where he set the box on his desk. His hands shook as he unlocked it using the small key that had been taped to the bottom.

Inside were manila folders, photographs, and a stack of letters tied with string. Grayson picked up the first folder and opened it, his eyes scanning the contents.

"Mechanic's confession," he said quietly. "Signed and dated two days after the accident. Richard paid him fifty thousand dollars to tamper with the brake lines and ...