secong+reading+journal

Actually，i cannot understand the story. It was confused when i am reading. So about the flowing questions, who is the killer ? In my opinion, is the wife .there is a quotation says "If she had not long known about the lady in the condominium, and if she had not come across his fishing tackle box with the loaded gun, the wig, and the make-up kit, packed ready to go"And i am confused about at the start i don't know who is talking ...To be honest ， i don't like it