Two of the owners of the company that makes OxyContin acknowledged to a congressional committee on Thursday that the powerful prescription painkiller has played a role in the national opioid crisis but stopped short of apologizing or admitting wrongdoing as they faced grilling during a rare appearance in a public forum.

“I want to express my family’s deep sadness about the opioid crisis,” David Sackler, a member of the family that owns Purdue Pharma, said at a congressional hearing. “OxyContin is a medicine that Purdue intended to help people, and it has helped, and continues to help, millions of Americans.”

Kathe Sackler, his cousin, told the U.S. House Oversight Committee that she knows “the loss of any family member or loved one is terribly painful and nothing is more tragic than the loss of a child.”

“As a mother,” she said, “my heart breaks for the parents who have lost their children. I am so terribly sorry for your pain.”

Asked about her role, she said she’d done soul-searching about it. “I have tried to figure out if there’s anything I could have done differently knowing what I knew then, not what I know now,” she said. “There is nothing I can find that I would have done differently.”

Rep. Kelly Armstrong, a North Dakota Republican, noted that OxyContin sales revenue increased even after the company pleaded guilty to crimes for improper marketing of the drug. “You want to ask what you could have done differently?” she asked. “Look at your own damn balance sheet.”

The two Sacklers, descendants of two of the three brothers who bought Purdue nearly 70 years ago, appeared before the committee in a video hearing held amid coronavirus restrictions.

They took the step after the committee’s chairwoman, Democratic Rep. Carolyn Maloney of New York, threatened to issue subpoenas. Purdue CEO Craig Landau testified, saying the company accepts “full responsibility,” in contrast to the family members.

Even before any of them testified, committee members from both political parties blasted them. Maloney said: “Most despicably, Purdue and the Sacklers worked to deflect the blame for all that suffering away from themselves, and onto the very people struggling with the OxyContin addiction.”

James Comer, a Republican from Kentucky, a hard-hit state, said, “The Sackler family profited immensely form the deaths of millions of Americans.” But Comer worried that holding the hearing now could delay justice for the people harmed by the drug as litigation swirls.

Parents of people who died from using the drug also appeared via video to tell about their children.

The hearing came three weeks after Purdue pleaded guilty to three criminal charges as part of a sweeping settlement with the U.S. Department of Justice.

The company agreed to pay more than $8 billion in forfeitures and penalties, while members of the Sackler family would have to pay $225 million to the government. No family member would be criminally prosecuted under the Justice Department settlement, although the deal leaves open that possibility.

The settlement requires the company to hand over just $225 million of the $8 billion total to the government as long as Purdue makes good on plans to settle thousands of lawsuits filed by state and local governments, a matter that is now in bankruptcy court. State and local governments blame the company’s marketing efforts for contributing to an opioid addiction and overdose crisis that has been linked to 470,000 deaths in the U.S. over the past two decades.

The Stamford, Connecticut-based company and the Sacklers have proposed resolving the lawsuits by transforming Purdue into a public benefit corporation, with its profits used to combat the opioid epidemic.

Some members of Congress and attorneys general for about half the states oppose that plan, which includes a requirement for Sackler family members to pay at least $3 billion in addition to giving up control of the company. Court documents show they have received more than $12 billion from Purdue since OxyContin was released. A third branch of the family sold its stake in the company before the blockbuster painkiller was developed in the 1990s.

David Sackler told the committee that the value of the company plus the $3 billion the family would contribute add up to more than the family received from OxyContin. He also noted that about half of what family members took out of the company was paid in taxes. Armstrong sarcastically thanked him for that.

The committee members were unmoved by the Sacklers’ explanations.

“Watching you testify makes my blood boil,” said Rep. Jim Cooper, a Tennessee Democrat. “I’m not sure that I’m aware of any family in America that’s more evil than yours.”