April 16th, 2007 will be remembered as one of the deadliest shootings in American history, leaving 33 people dead on the Virginia Tech campus, including the shooter. It's a day West Seattle's Whitney Moore would like to forget but now feels compelled to honor. Whitney was a student that day when the "sirens were deafening" on the Virginia Tech campus. She shares her story with producer John Yeager on this special edition of Bloodworks 101.