Other mistake: It didn't make sense Catherine was a Catholic preacher but worked at The First Baptist [Protestant] Community Church" and drove a van with the same on it. (00:31:00)
Deliberate mistake: Considering the position of the surveillance camera (height and angle - almost parallel to the side of the building as well as to the sidewalk), plus the lens being indented within the outer frame, it would not have been able to capture a view of Redd on the sidewalk below like it did. (00:24:40)