The results are in, BK tested negative for FIV, FeLV and heart worm!!!!!! Yea for BK! I was so thrilled to hear this news.
He's under the knife at this very moment, getting his little testosterone factories removed. Several huge steps closer to him becoming an indoor kitty. I'm hoping the neutering will take away his desire to spray, because spraying and indoor kitty just don't mix!
BK will spend the night at the vet, so he will stay warm and cared for while he heals. I'm not sure what we will do with him once we pick him up, I'm inclined to keep him inside for a time to see how he does with being inside and then start the process of finding him his new home. For now, I'm just gonna enjoy knowing he is well.