very emotional. the president heard a lot. >> reporter: he heard a lot indeed from students, from parkland, florida, from parents. and of course schools that are etched in our collective american memory. co columbine, sandy hook. stories going on for longer than students at parkland has been alive. but the testimonials gave the president an earful as he decides whether he will take a lead on this issue. but let's listen to the story, the testimonial from andrew pollack whose 18-year-old daughter meadow was killed one week ago today in park land, florida. >> my daughter has no choice. she was murdered last week and taken from us. shot nine times on the third floor.