Grand Rapids Press Published 11:07 p.m. UTC Jun 13, 2018 Grand Rapids – A former nature center director in western Michigan has been ordered to repay money embezzled from the facility or face a potential 90 days in jail. David Andrew Kieft, 36, was given a deferred jail term Tuesday at his sentencing for embezzlement. Kieft apologized and said he is working two part-time jobs to help repay the funds. Kieft, who resigned as director of the Howard Christensen Nature Center in Kent City in August, also was ordered to complete three years of probation and serve for 200 hours on a work crew. Kieft estimates he owes about $4,000, but nature center volunteers say it’s about $16,000. In a statement to the judge, the nature center board’s treasurer said the embezzlement has threatened the center’s existence.