How about the CliffsNotes?
Here's an extremely shortened version.
This guy has been in touch with Walder since the story broke, and he's basically saying that not only is he innocent, but he has a recording of 2 Rabbis conspiring to manufacture the story since Walder became too powerful. He even reached out to one of them and he couldn't give him a straight answer as to why he did it, but he didn't straight up deny it either.
Additionally, Walder took a lie detector test by a Shabak (similar to FBI in the US) technician and passed with flying colors, while no one on the "other side" of the story agreed to take the test.
He's basically saying that an innocent man is dead today thanks to a conspiracy by powerful people