an hour from now, but for now, the crowds are gathering. people have come by plane, by train, car. they ve gotten here any way they can. in the thick of it all is our own cnn s ed lavin dara who has met up with a number of students, many accompanied by their parents. families are here. this is an incredible affair for so many who do indeed feel empowered. ed. reporter: hello, fredricka. here in the crowd we re with a unique group of people. it s a fascinating group of survivors and relatives of people who have died in some of the most high profile mass shootings across the country, aurora theatre shooting, the gaby gifford shooting in tucson, the town center mall shooting in oregon, las vegas, pulse. this is a group of them. they ve come here to be together on this day. they share this horrific