"The terrain is “pretty rough and steep,” he told the court. He showed the jury a map of the area and walked them through the topography. He described how investigators carefully marked the area near ground zero and the path leading to the girls’ bodies."
Maybe I missed something earlier, but, I don't remember hearing about a "...path leading to the girls' bodies."
What path?
From the cemetery. The cemetery is behind the crime scene where the girls' bodies were discovered. This is the area LE used to get to the crime scene.
Did Dulin testify that he considered this a red flag? Not having the ability to hear the testimony, I know we're relying on a lot of different people's notes of the trial, so I might have missed this. I'd be surprised if he said or thought this, since RA was thereafter "cleared" and Dulin said there was nothing notable about the interview. Or are you really just saying that you think it is a red flag (which I can understand, but you've stated it differently than that)?
This is what was reported by someone. I will try and go locate it. I don't think they used the exact word "red flag" but they did say he testified that he thought it odd that RA did not want to meet at his house or the police station to give his statement.