Vague email chain referencing alleged past betrayal by "Donald" and a lawsuit

The messages contain only informal requests for phone numbers and a brief, unsubstantiated claim that someone named Donald accused the sender of betraying him 15 years ago and mentioned a lawsuit. No Jeffrey E. alleges that "Donald" accused him of betrayal 15 years earlier. Reference to an unspecified lawsuit that "Donald" asked Jeffrey to join. All communications are informal, lacking dates, loc