I keep going back to the crime scene, the church.
Why wouldn't the killer want to commit the murder of MS at her home or when she was getting into her car that morning at her home? It would've been easier--no commercial cameras, no commercial-grade doors to break into, it was raining & dark outside, no elaborate costume needed!?
So why have to go through an elaborate costume, feign a B&E inside the church, risk being seen on commercial cameras, & risk gladiators showing up in a tight timeline?
Was the perp concerned about who would find her body inside or just outside MB's home? The innocent ones perhaps?
And was the perp also concerned enough about BB's emotions that they planned this while he was far away?
Those dearest to MB did not have to witness the aftermath of a horrific murder. How nice of the killer to think of the loved ones shock & sorrow.
Imho, this killer was very methodical in their planning.
"I can forgive you but only if you turn yourself in"......chilling words spoken by a victim of this heinous crime to someone he suspects.
So this tells us that whoever killed Missy had hatred for Missy, but was considerate of the rest of the family, and is someone to whom Brandon thinks he is important enough to warrant a confession to get his forgiveness, even knowing they'll be tried for capital murder and face the death penalty.