Stolen, or not secured so it fell out?
Twice I've had gear I thought was stolen, or left at a wilderness campsite.
Once never found the equipment and will never know if it was lifted from the back of my truck while restocking supplies at a grocery store. Or left it next to the truck. I remember taking it out to load elk quarters and thought I put it back in the truck but will never know. I do know Kali plates in ID/MT can cause some folks to do things they wouldn't normally do.
And once getting ready to pack out of the Pecks wilderness I set a pair of binoculars away from the horses so they wouldn't get stepped on while loading the horses. Got to the trailhead and after unloading everything, no binos. Wasn't worth a 24 mile round trip ride for a pair of $450.00 binos. I upgraded and several years later, going through my tack, I found those old Leopoldo binos.
So the first scenario is still a mystery.