Black Briggs & Riley briefcase with RW initials

I lost my black Briggs & Riley briefcase yesterday around 3pm near the Walmart on Osage Beach Parkway in the Lake of the Ozarks area, just off Highway 54. It's a medium-sized leather case with a slightly worn look, brass front latch, and a light gray interior lining. There’s a small brass tag engraved with my initials 'RW' on the front, and a red USB drive tucked in the inner pocket. Inside are a few client files and a folded legal pad; this thing is essential for my work and has sentimental value, since it was a gift from my mentor.