Load Bearing Wall

[BigRichard]

Happy New Years everyone. A couple of quick questions for the construction guys. I am working on remodeling some stuff in my house. I want to take down a small piece of a wall and I am trying to decide if it is load bearing or not. The wall does run perpendicular to the trusses/floor boards so it is a possiblity but I am pretty certain it isn't. The things that lead me to believe this are a few different things... This wall is only 5 feet from the outside wall and there is another wall running for most of the length of the house down the middle(wall behind the shower in the picture). I believe that wall would be the load bearing one in this case. The other thing is there was a door frame in this section of the wall and from my picture you can see the frame isn't even sitting down on the wood for support. For it to be load bearing you shouldn't see that gap like you can in the picture I would think. I also thought door frames on load bearing walls would have two 2x4s supporting the two 2x4's across the top and not just one like there is. The previous owner said he couldn't find the original prints for it but he said something about using trusses so he didn't think it was load bearing... Not sure if trusses have any relevance to that wall being load bearing or not but maybe someone can answer that as well.