Just tossing in my 2 cents because I haven’t been able to read other posts, WS has been down for me. My thought on watching the presser was that they were, literally, talking to Jayme, but I feel the intended purpose was definitely to try to appeal to the perp’s feelings. To humanize Jayme. I did, however, wonder if they were speaking to a female perp rather than male. The tone of it kind of just gave me that feeling. I know statistically, this is likely a male perp, but just something while watching it made me feel like this could be female, maybe even a mom. I think, without a doubt, they feel that the person who did this knows the entire family.
Do we know why her dad was divorced? Going with the female theory, maybe a mistress who killed Denise first, James either tries to kick her out of the house and she comes back and shoots him, or he comes home from work and is shot by her, then she grabs Jayme? Maybe she was trying to convince James and Jayme to leave with her? Kills Denise in the process? I don’t know. Just thinking out loud.