It was a box of files
No one knows why the dogs (2) “hit” on it
Security is at an increased level due to Super Bowl
It might have been a secretly planned trial run for Super Bowl week to test the Dallas PD’s preparedness.
“It was a box of files”
Better than a box of hammers!
Somebody who handled the box may have been to the range the day before. Dog’s noses are pretty good!