Families of Columbine and Sandy Hook school shooting victims think Parkland may be different: 'These kids are going to change the world'

Few of the Marjory Stoneman Douglas High School students had even been born the day two gunmen shot and killed Coni Sanders’ father in a massacre at Columbine High School in 1999 – the largest school shooting in America at the time.“This has been 18 years of, every time there is a mass shooting all of the adults start screaming at each other and telling each other why they’re wrong,” said Ms Sanders, who has worked as a forensic therapist for violent offenders since