Black Samsonite briefcase with initials JM

I lost my black Samsonite briefcase yesterday around 3pm outside the Safeway on Main Street in Susanville. It’s a medium-size, leather-like case with a slightly scuffed surface and a latch that’s a bit loose. On the back there’s a white sticker with the initials 'JM' in blue marker, and inside you’ll find a well-worn brown notebook, a USB-C drive, and a stack of papers with my name on them. This briefcase means a lot to me—it was a gift from my late aunt and holds some personal documents I can’t replace. If anyone found it, I’d really appreciate getting it back.