What I'm wondering about is the gunshot at PJ's house. If you look at the layout of the house, where bertram and smith were sitting they had the main door to their left, which means looking at the front of the builiding from Lisbons perspective, they were behind the window left of the door.
That means that PJ shot someone on the couch as we can clearly see at the beginning of "the Great Red Dragon" the light beam from the gunshot could be seen in the left window from Lisbons perspective, the 3 Blake Association members were on the right side of the house. 
Am I wrong ? What could that mean ?