Note that in your Found log -- that you "didn't see a TB in here". But if it's a container full of stuff, there's a chance that it might still be there. Some Travel Bugs are basically just a little metal tag.
If you did a pretty thorough inspection, and there's definitely no TB there, it's nice to contact the TB owner, and let them know. Bear in mind that someone may have grabbed the TB and just hasn't gotten around to logging it yet -- or they didn't do the proper log, and it may turn up in another cache later.
Thanks for the reply! I actually did note that in my found log, but I wasn't sure if there was anything else I need to do. I guess I can also contact the TB owner as others have also suggested.
We did find a TB the other day, which is cool!