"Murdoch must have known about the crimes his employees were committing."

Bunk.

Murdoch's empire employs 53,000 people. He personally meets with a few dozen and plans general strategy.

His various outlets cover all political opinion and range from hard news to tabloid fluff.

For a fair camparison, take a big city with 53,000 government employees and see how many of them are crimmals. It will be far more that Murcdoch's crew.