Father of Columbine Victim Reacts to Boulder Shooting

The U.S. is reeling from its latest mass shooting, which took place yesterday in Boulder, Colorado. This is the country's 7th documented mass shooting in the past week, coming barely 6 days after 8 people in Atlanta were shot to death, including 6 women of Asian descent. Gun safety advocate Tom Mauser, whose son Daniel was killed in the 1999 Columbine High School shooting, joins the program.