(NEWSER)Â â€“ A member of Republican Gov. Chris Christie's transition team and her husband were under "enormous stress" in the weeks before he fatally shot her and then killed himself, their daughter said. Lorraine "Lori" Bramhall told theÂ Daily RecordÂ that John Bramhall believed his wife of 54 years, Joan, was suffering from dementia. Lori Bramhall disagreed with the assessment, saying her mother could be "forgetful" but there were no apparent changes in her personality. But longtime friend Keith Pierson told the newspaper that Joan Bramhall did appear to have some mental issues.