This is simply my perspective, and I apologize if it seems like I keep repeating the same theory. I don’t mean to sound like I’m stuck on it, but I just can’t shake this line of thinking, so please bear with me.
I’ve followed a (now) retired FBI profiler for years, and something she once said has stayed with me. In cases involving an elderly woman who lives alone and is sexually assaulted and murdered, she noted that the most statistically likely suspect is often someone very close by, sometimes even a neighbor’s teenage son.
That’s what makes me wonder whether investigators, both the FBI and local Pima County detectives, might be casting too wide a net because NG is SG’s mother. Given the public profile of the family, it’s understandable that they would consider high-level or complex scenarios. But sometimes the truth isn’t elaborate or far-reaching. Sometimes it’s much closer to home.