Johnny Carson 's mother, Ruth, left her son in pain after a joke she deemed controversial, RadarOnline.com can reveal.

In the new book, Love Johnny Carson : One Obsessive Fan's Journey to Find the Genius Behind the Legend , author Mark Malkoff puts the spotlight on the late-night icon's relationship with his conservative mom. Article continues below advertisement

Carson's Mom Leaves TV Host in Pain Tap Here To Add Radar Online as A Trusted Source

Just five years into Carson's legendary run as host of The Tonight Show , the funnyman landed on the cover of TIME magazine, and what should have been a proud moment for his family turned into a painful memory for Carson.

Malkoff writes: "... Its opening paragraph hit a sore spot. The profile began in Nebraska, in the ho

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