washington to stand alongside of the stoneman douglas high school students, survivors of other mass shootings. all of them linked by gun violence. >> reporter: moments known by a single headline brought them together, tucson, orlando, las vegas, virginia tech. this group of about 15 people marched in washington, survivors and victim's relatives of the most horrific mass shootings in u.s. history. they came to embrace the students of parkland. >> i hope that the signs that we're carrying saying we support them, that we're survivors, that they know there is light at the end of the tunnel. >> reporter: pat may survived the shooting that almost killed congress woman gabby gifford seven years ago. six died that day, 13 wounded. may wrestled away a magazine of