It wasn't in this pocket it was in his jacket with the gun ripped open most likely in side back in his jacket with the gun to his back side where he could get to it that was a very good idea cause it wouldn't of been searched there and pigeons are very quiet and they come for seeds like crazy.
Seems that everyone makes it very complicated I have a idea maybe wrong who knows but I feel from watching all of them that Red John is working with someone. Partner I feel Grace Van Pelt is the Partner to Red John I feel this for many reasons. She is the closest to Lisbon so she can get the info all the time to Red John she has access to many programs computer to help her with this she started at CBI same time Red John killed. I feel the drawing on the Wall witch I feel is like leaving your signature to the crime its wasn't about blood it was about her with red hair red eyes she is all red I think she drew the drawing. She is the most likely suspect to be in this he ask Red John is that was him do you want to know how I got the names he said no. He got the names from Grace. Do you really think a CBI would let people get married I say to that no way. Also if she was like a low person in it she would have dots on her shoulder but she must not he sleeps with her and am sure he has nothing to do with it. so there is my theory so if we end up seeing Grace in it with who ever Red John could be even though we think he is dead who knows maybe not. Maybe a lot crazy thinking but we will see.