The brother of slain Democratic National Committee staffer Seth Rich wrote a letter on Tuesday to the executive producer of Sean Hannity’s Fox News show pleading with him to find “decency and kindness” in his heart and stop spreading an unproven conspiracy theory about the unsolved murder.

“Think about how you would feel losing a son or brother. And while dealing with this, you had baseless accusations of your lost family member being part of a vast conspiracy,” Aaron Rich wrote in the letter to “Hannity” executive producer Porter Berry, a copy of which was provided to CNN.

“As the family, we would hope to be the first people to learn about any such evidence and reasons for Seth’s death,” he added. “It is a travesty that you would prompt false conspiracy theories and other people’s agendas rather than work with the family to learn the truth.”