Complex sentence: The investigation was criticized because the chair was appointed by Democratic governor John Hickenlooper, all other members of the panel were selected by the chair, the chair initially refused to name the other members of the panel, and no written records were created during its investigation.
Split into simpler sentences: The investigation was criticized because the chair was appointed by Democratic governor John Hickenlooper; all other members of the panel were selected by the chair. The chair initially refused to name the other members of the panel, and no written records were created during its investigation.