Navy blue Samsonite suitcase with red TSA tag

I found a navy blue Samsonite suitcase this afternoon around 2:30pm near the Riverfront Park parking lot on West Spokane Falls Boulevard in downtown Spokane. It's about 26 inches tall, with a few scuffs on the corner and a bright red TSA tag hanging from the zipper pull. Inside, there were a couple of shirts and a small toiletry bag; there’s a green luggage tag with the initials 'RK' and a Seattle Seahawks sticker on the lid. I’d love to get it back to its owner—if you recognize it, share the initials on the tag or a detail you’d know to verify, like what was inside or a unique mark.