A federal judge showed little sympathy Monday to an East Hartford grandmother who claimed she embezzled more than $1 million from the Mark Twain House and Museum to support her struggling, extended family. Senior U.S. District Judge Warren W. Eginton allowed Donna Gregor, who faced fraud and tax charges, to address him to apologize for eight years of theft she committed while employed as controller of the national landmark museum on Hartford's west side. He watched a brief, video plea from Gregor's mother, who has been diagnosed with cancer and is being cared for by her daughter.