Elizabeth Street, a wheelchair bound resident of Country Cottage Assisted Living in Georgia, suffered a horrific and preventable accident when her chair brakes were not set and her chair rolled down a hill and into a ditch of water. The woman, died of pneumonia a few days.   According to a report by the U.S. Centers for Disease Control and Prevention (CDC), approximately 1,800 elderly people residing in nursing homes die every year due to falls. Between 10 and 20 percent of nursing home falls result in serious injury; between 2 and 6 percent of injury falls result in a broken bone injury. Even when the fall does not cause death, it can result in permanent physical disability.  Falls are a major cause of depression, anxiety, social isolation, and reduced mobility.