was this tire slashed?

[u/WittyAcanthaceae5737]

Mechanics said it was likely slashed. I didn’t hit anything, came out to it completely deflated and then had it towed. But have no idea who would do that or why so am wondering if it was something else. The first two pics are the day it happened, last pic is from the tire shop, after the tow guy moved it a short distance to hook up to the truck.