In previously unreleased interviews, police who responded to the Robb Elementary shooting told investigators they were cowed by the shooter’s military-style rifle. This drove their decision to wait for a Border Patrol SWAT team to engage him, which took more than an hour.In previously unreleased interviews, police who responded to the Robb Elementary shooting told investigators they were cowed by the shooter’s military-style rifle. This drove their decision to wait for a Border Patrol SWAT team to engage him, which took more than an hour.