April 7, 2009 7:58 am Watch: Final Moments Before Mom Guns Down Son Watch the final moments before a mother shoots her 20-year-old son and then turns the gun on herself at a crowded Florida shooting range. Local 2:17 Family remembers woman allegedly killed by boyfriend 1:44 Maryland man killed in North Carolina days before college graduation 2:23 Michelle Obama surprises DC high school students celebrating College Signing Day 2:00 Rider spotted clinging to back of Metro train 1:55 100-year-old Vietnam vet finally receives his college diploma