I dunno re the computer take. I'm working to imagine why they would need it, but perchance, he might have railed against the construction company and its practices to a pal re their being too strict; possibly re their being sloppy but I think that is less likely (to me).
On the situation, construction people on other jobs within sight of the demo building are online noting that they thought the demo process they were watching for days was shoddy (my word).
A) Why didn't they call the city building and safety people?
B) lack of demo inspection. I'll put this down to a busy department with low funds but I've no idea. From my short reading, ordinary safeguards weren't in place, and an apparently high bulldozer operator was down the line on responsibility.
Are demolition plans filed with cities?
Demo is an art, and this was artless.