shine a mirror on america. to look with new eyes at the shootings we've become numb to. there's no doubt we're drowning in a sea of lead. the question tonight, are we okay with that? >> a tour de force report. joining us is our senior justice correspondent pierre thomas, pierre, thank you. we all see pieces of the puzzle but you've been connecting the dots. >> what struck me was the chronic, sustained nature of this violence. you can book it that tonight on a hot summer night in july, someone somewhere in this country will be shot, someone will be wounded, and lives will be forever changed. >> mass shootings tend to grab national headlines. you looked at individual shootings. >> not just shootings in places like chicago. across this country, over and over, much of it domestic violence, it's shocking. >> pierre thomas, thanks to you and your team for that report. >> we'll be back. >> this special edition of "nightline" is brought to you by geico. let's feed him to the sharks! squuuuack, let's feed him to the sharks! yay! and take all of his gold! and take all of his gold! ya! and hi