Colton Haab, a student who survived last weeks mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida, refused to participate in a CNN Town Hall on Wednesday night after he was told to ask a scripted question. Haab, a junior at the high school, told Fort Lauderdale ABC affiliate WPLG that CNN invited him to speak at the televised town hall in nearby Sunrise, Florida, and that he and his parents had dressed up for the occasion.