This story was originally published by the WND News Center.

Convinced that his brother was most likely murdered in his Manhattan jail cell, Mark Epstein called the recent FBI memo dismissing that possibility "stupid."

Fox News reports that Mark Epstein, 70, who has long disputed the suicide narrative, is one of many Americans, including Trump-supporting conservative influencers, who are skeptical of the government's memo claiming there is no "client list" and that no evidence exists that Jeffrey Epstein was murdered.

Mark Epstein told Fox News Digital that when he hounded New York officials for answers, they didn't even provide him with the 9-1-1 call reporting his brother's death at a federal jail in Manhattan in 2019.

He said his brother was looking forward to a bail hearing at the time of his death and that autopsy findings were inconsistent with suicide.

Mark Epstein said he laughed when he first saw the FBI memo.

"Every time they say something or do something to try to quash the fact that he was most likely murdered, they put their foot further down their mouths," he told NewsNation this week.

"When Kash Patel came out with that statement, I laughed at how stupid it was," Epstein said.

Jeffrey Epstein accomplice Ghislaine Maxwell was convicted of trafficking in a trial of her own. She is appealing the verdict, and until she exhausts her legal options, neither the FBI nor federal prosecutors are expected to release criminal evidence that hasn't already surfaced in court, Fox pointed out.