The network statement said the cause of death would be released "at the appropriate time."
Many fans, celebrities included, tweeted condolences and talked about the death on social media sites. One Texas radio station where he was a mainstay ran photographs on its website of Kraddick at the microphone.
Word of Kraddick's passing spread quickly via social media.
"RIP Kidd Kraddick. You were an amazing man and a friend. You are already missed," Dallas Mavericks owner Mark Cuban tweeted.
"Oh Man, I just heard Kidd Kraddick died! He's my childhood dj. What a sad day. His poor family. He was always nice 2 me from the beginning," singer Kelly Clarkson tweeted.
Joe Jonas of the Jonas Brothers, only recently announced as the headline act of a planned first-ever Kidd's Kids charity concert in Dallas next month, wrote: "The sad sad news about Kidd Kraddick is shocking. He will be missed greatly."
Richie Tomblin, described as the head golf professional at the Timberlane Country Club in Gretna on its website, told AP that Kraddick wasn't looking well when he saw him getting ready for Saturday's charity event.
"He came out and he borrowed my golf clubs and went out to the driving range," Tomblin told AP when contacted by phone. "It's kind of a freaky situation. He came out. He practiced a little bit. He hit the ball at the first tee and wasn't feeling good and after that I didn't see him."
Tomblin said the hundreds of amateur golfers taking part went ahead with the event Saturday. He added he only found out afterward that Kraddick had died and he was still shaken about it.
"I'm still trying to figure it out. I really don't know what happened. Everyone keeps texting me asking, `What's going on?' I really don't know," said Tomblin.
He added he was reluctant to even touch the set of clubs Kraddick had borrowed Saturday for his practice swings.