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A former long-time resident of Co-op City in The Bronx in New York City who has degrees in behaviorial sciences and gerontology and has worked in the nursing home industry for over 20 years, Regenhard became an advocate for skyscraper safety after the death of her 28-year old son, Christian, a probationary firefighter with the New York City Fire Department, who perished in the collapse of the World Trade Center on September 11, 2001.