True. But what if the owner of the truck doesn't even know his truck is being used? If it's 2 brothers like I'm speculating, they would be using one of their father's trucks, an old one he isn't using anymore for his business. The father would have an alibi because he IS innocent. Same if the truck is still being used. In that case both employees and owner would have an alibi for the time of the shootings.
Again, am I saying this is the only logical explanation? No. Are there flaws with this theory? I'm sure you will let me know them all. Do I believe this is what is happening? Not necessarily.
I think, however, this is one possible theory to explore and isn't that what this is, a discussion thread on the possible explanations?
We need to do a little mental experiment here. Suppose you own a business that operates this kind of truck. Now 10 people have been shot and the police announce they are looking for a truck like one of yours. Are you not going to inspect them? Are you not going to consider where they were at the time of the shootings? And who was driving?
Let's say you have a dozen or so employees. Are all of them going to be so deficient in curiosity that they don't compare notes as to where they were at the time of the shootings?
I believe there are at least three people involved, so that each has an alibi for at least one shooting. In my mind this makes it more likely to be organized terrorism.