The pocket knife that Greg White smuggled into the Route 91 Harvest festival on Oct. 1, 2017, in Las Vegas and later used to help concertgoers escape gunfire. “I still carry it everywhere I go,” W …

The pocket knife that Greg White smuggled into the Route 91 Harvest festival on Oct. 1, 2017, in Las Vegas and later used to help concertgoers escape gunfire. “I still carry it everywhere I go,” White said. (Greg White)