Arnulfo Reyes can’t forgive law enforcement for taking more than an hour to stop a gunman who killed 11 fourth-graders in his Texas elementary school classroom and 10 other people in the next room, he told ABC.

Reyes, a teacher who was shot twice during the May 24 massacre at Robb Elementary School in Uvalde, recalled the horror that unfolded in his room and an adjoining one and spoke, too, in interviews that aired Monday and Tuesday about his mounting anger toward law enforcement responders.