Columbine will be closed on last year . Hackberry trees , lavender mist , spirea , purple asters . `` Day that changed us forever , '' former President Niland said day of anniversary . Memorial park has posted a wish list of items sought to complete it .
Columbine will be closed on last year . `` Day that changed us forever , '' former President Niland said day of anniversary . Memorial park has posted a wish list of items sought to complete it .