HOUSTON (AP) — Enron Corp. founder Kenneth Lay, who was convicted of helping perpetuate one of the most sprawling business frauds in U.S. history, died Wednesday of a heart attack in Colorado. He was 64.

The Pitkin, Colo., Sheriff’s Department said officers were called to Lay’s house in Old Snowmass, Colo., shortly after 1 a.m. Mountain time. He was taken to Aspen Valley Hospital, where he was pronounced dead at 3:11 a.m. Lay, who lived in Houston, frequently vacationed in Colorado.

Family spokeswoman Kelly L. Kimberly issued a statement saying, “Ken Lay passed away early this morning in Aspen. The Lays have a very large family with whom they need to communicate. And out of respect for the family, we will release further details at a later time.”

Pastor Steve Wende of First United Methodist Church of Houston, said in a statement that church member Lay died unexpectedly of a “massive coronary.”

Wende said Lay and his wife, Linda, were in Colorado for the week “and his death was totally unexpected. Apparently, his heart simply gave out.”

Lay was scheduled to be sentenced Oct. 23. He faced decades in prison.

Lay led Enron’s meteoric rise from a staid natural gas pipeline company formed by a 1985 merger to an energy and trading conglomerate that reached No. 7 on the Fortune 500 in 2000 and claimed $101 billion in annual revenues. He traveled in the highest business and political circles.

For many years, his corporation was the single biggest contributor to President Bush, who nicknamed him “Kenny Boy.”

Lay was convicted May 25 along with former Enron CEO Jeffrey Skilling of defrauding investors and employees by repeatedly lying about Enron’s financial strength in the months before the company plummeted into bankruptcy protection in December 2001. Lay was also convicted in a separate non-jury trial of bank fraud and making false statements to banks, charges related to his personal finances.

Skilling, reached by telephone at his home in Houston, told The Associated Press that he was aware of Lay’s death, but declined further comment.