Steve Smith, the first mountain climber to break the world record for the highest peak in the world, has died.

His son said the cause of death was a heart attack.

The son, Richard Smith, told ABC News that his father was on his way to the top of the world when he fell and he died in his car.

He said he was shocked to hear his father had passed away, but he was still grieving over what he calls his father’s legacy.

Steve Smith climbed Mount Everest in 1953.

His record stood for more than half a century before it was broken by a climber in 1995.

He was a big man, and I’ve been around him all my life, he said.

He just had this kind of a heart and a sense of humor, he told ABC.

It’s hard to believe he was able to climb Mount Everest, he added.

I still get a kick out of the fact that he could climb up there.

I’ve been in the mountains with him for the last five years.

I’m just so happy to see him around.

His daughter, Jill, said she had been overwhelmed by his support.

I just hope he gets a little bit better.