I own some of those, and know exactly what they look like and their dimensions. They are 10.5" x 3" and 2.5 inches deep. I use mine as a place to contain small tools (like sockets, small wrenches, etc) within my toolbox.
However, it looks to me like the object in hand is more like a box you'd see on a store shelf, with a picture (of contents) on the end and on the side.
I took pictures in a dimly lighted area of what I own, and also tried to make it blurry in some of them, and the problem is that if there's enough light to make the object "white" then there's way more "white" area (ie, plastic) and way less "dark" area (ie, the slots), and not almost solid black like we see in the video - the end result being very gray or even striped. In addition, what "stripes" we see in the video are at an angle, whereas the item as identified has slots that are essentially perpendicular to the top and bottom, iow going straight up and down. It was hard to tell if I was actually seeing differences or not, because of the video's limited definition, but enough to make me wonder.
So respectfully, I gotta ask - Did that "identification" come from someone who would know because they personally saw said "object" out of place and collected/noted by LE at CCOC after the crime, and thereby knew that's what it was? Or is this info from someone seeing that item somewhere and thinking "This looks like the video object to me"?
The first 4 pics are from my cam using various lighting configurations and blurred movement to see what was possible, and the last is from the video for comparison where you can see the degree of clarity of the white areas, yet on sides and end it is almost all dark
View attachment 293487 View attachment 293505 View attachment 293506 View attachment 293507 View attachment 293508 .