Bill O'Reilly says that the "brutal hatred" Roger Ailes had to endure "killed" the man who created the Fox News empire. 

In a guest column for USA Today, the former Fox News personality expanded upon his thoughts and reflections on Ailes' death made on his No Spin podcast earlier on Thursday. 

O'Reilly said that Ailes' bluntness and ability to speak truth to power during his stints as an advisor to Ronald Reagan and George Bush the elder, as well as helping conservative radio host Rush Limbaugh become a star, had led to him making enemies. "And it was that bluntness that made his life difficult, as enemies accumulated — some armed with a brutal hatred," said O'Reilly. 

Read more: Media Reacts to Roger Ailes' Death

The hatred for Ailes only intensified when he helped create Fox News in 1996, said O'Reilly, especially as the network started trumping CNN in the ratings and became the dominant force in cable news. 

O'Reilly concluded by linking the rapid changes in America, brought on by technology and a changing culture, and how this fed into increased hatred for people like Ailes. "We are living in a rough age, with technological advances changing behavior and perspective. The downside of that is turning us into a nation where hatred is almost celebrated in some quarters."

O'Reilly added: "Roger Ailes experienced that hatred and it killed him. That is the truth. But he would not want to be remembered that way. He did both good and bad in his life and in that, he has something in common with every human being."

Read more: Bill O'Reilly Remembers "Visionary" Roger Ailes: "He Saved People, Routinely"