[Uncle Chip]

There is only one gun.

The shotgun is cleared and set down by one person, and then taken out of the trunk by the man in white behind him.

Then at the last minute another man in white pulls the grey carrying case/cover out of the trunk.

One shotgun and one grey carrying case removed from the trunk.

That’s it —

[RummyChick]

Here is a better view.

Hear the guy say

“It looks like an assault rifle doesn’t it.”

http://www.nbcnewyork.com/video/#!/on-air/as-seen-on/Authorities-Retrieve-Rifle-from-Trunk-at-Shooting-Scene/183584891

And you are right, the second item is not a long gun.