When you put yourself in the position of what these officers knew at the moment that van was heading toward them, it's clear they were justified.
The next morning, I boarded a van headed northeast.
The van started up and turned round, heading back towards Wells.
Less than a minute later, the van was turning around and heading back to the high school.
The van headed south on Lumpkin through the university area and towards the south side of town.
The men in the van were heading. . . where?
The ramp agent replied, "That white van is heading to the terminal now."
The van picked up speed and headed for the gate.
Even as he spotted it, the van swung away from the curb and headed toward him.
It was afternoon when they grabbed him; the van must be heading east.