APRIL 28TH, 2012 DAY OF MOURNING APRIL 28TH, 2012 DAY OF MOURNING April 14, 2012 Katrina D APRIL 28TH, 2012 DAY OF MOURNING APRIL 28TH, 2012 DAY OF MOURNING APRIL 28TH, 2012 DAY OF MOURNING April 28th is designated as a day of mourning to remember workers killed or injured on the job. Date April 14th, 2012. Download April 14, 2012 Categories:Bulletins