Lydia Murray Lydia Murray resigns as Cook County, Ill.'s CIO Vimeo

Cook County, Ill., CIO Lydia Murray has abruptly resigned from her post, citing personal reasons, according to The Chicago Sun-Times.

Murray, who became CIO in September 2012, received commendations from board members for her collaboration with the city of Chicago and her work updating the county's communications systems, to name a few. Commissioner Larry Suffredin called Murray a "shining star" in county government.

Her resignation was all the more perplexing since on Dec. 3, she spoke at the City Club of Chicago; Murray was introduced by Board Chair Toni Preckwinkle as being someone who would help the county on its "path toward reform," and then spoke of taking the county "from oil lamps to LED lighting."

Though Murray declined to comment, she did release a short statement saying that she tendered her resignation for personal reasons, and called it a “difficult decision.”

Murray previously worked for the Civic Consulting Alliance, was chief of staff at the Chicago Transit Authority, and deputy chief of staff at the city of Chicago, where she chaired the Information Technology Governing Board.