The pickup slows WAY down, and it looks to me like it comes to a stop right in front of the cameraman’s vehicle.
Of course, that happens out of frame, so I am guessing. But my guess is based on what I can see.
By the time the cameraman turns, the pickup is back in the front of the convoy. But the semi passes out of view at the 18 second mark, and the camera doesn’t turn until 4 seconds later, and makes a pan that takes 3 seconds. By that time the back of the semi appears to be about a hundred feet away, so the distance to the pickup is perhaps twice that.
So what I’m suggesting happened is the pickup came to a full stop at around the 10 second mark, remained stopped for five seconds, and then accelerated enough to get 200 feet away from the camera in 9 seconds. That would only require accelerating at about 5 feet-per-second, and it would be doing 30 mph at the end of that time.
As for the accident happening in the other lane, I covered that already, but here it is in more detail:
At 10 seconds, the two armored vehicles are side-by-side. The one in the right lane begins to slow down, and at about 13 seconds it starts to move left (previously its right tire was very close to the white line).
The driver of the semi sees him slowing and moving left, and taps the brakes. (probably the driver thought the armored escort might move into his lane). By the time the semi’s brakes can be heard (15 seconds), the semi cab is already pulling alongside the armored car.
And one second later the other vehicle bumps the back of the trailer.
Clearly, the escort hit the trailer because the truck tapped the brakes, the truck tapped the brakes because the armored vehicle ahead of it in the right lane slowed and moved left, the armored vehicle slowed and moved left to give safe room to the pickup stopped on the shoulder, and the pickup was stopped on the shoulder to stop the vehicle parked there with a guy in the driver’s seat from pulling out.
Thus, the domino that started the chain of events that led to the collision was the cameraman sitting behind the wheel of a vehicle parked very close to (and pointed towards) the street. (The shot around the 24-25 second mark appears to have been straight out his windshield, based upon the brief glimpse of his dashboard at 27 seconds.)
I wasn’t intending to make a big deal of this. As I said, perhaps the cameraman didn’t have a lot of warning this was about to happen, and the way the video begins supports that. If he just pulled over to the side of the road and grabbed his phone, I think he was doing the best he could.
But if he actually chose that place to park and film the convoy, that was definitely underthought, because it is pretty obviously too close to the road and will seem like a potential threat to the guys securing the convoy.