Four years and six days before a fourth-grade class was gunned down at Robb Elementary School in Uvalde, Texas, Rhonda Hart lost her teenage daughter, Kimberly Vaughan, in a shooting at a high school about 300 miles east.
She's a member of a tragic, steadily growing network: parents of children who were killed in mass shootings. "We call it, unofficially, the Dead Kid Club," she said.
So when she heard the news of yet another school shooting in Texas, Hart knew better than most what that will mean for the 19 families now missing young members.
