Let's ask this: why is 5 pm significant and how could that single statement be self incriminating?
Cops don't volunteer any information, they want to know what you know. "Do you know how fast you were going miss?"
Assuming 5 pm was given to Officer Natividad, SC wants that statement suppressed because he slipped up. He made up 5 pm to distance himself from the crime however only a few days later, he starts saying she came over at 8 pm. No wonder he failed the poly.
Why so many different timelines given by SC? Easy. He had no idea who she'd told she was headed to his place for the night. I really think that was his pretense, that she could spend the night. Given the clandestine nature of their relationship, he could count on Charli NOT telling her mom or sisters she was "going back to him" that evening but what about her friends? THEIR friends?
On the drive to Keanae, they're talking about baby, arguing maybe, her phone stays on and with her because she doesn't feel she's in any danger. Even if she got mad at him, she won't text anyone to complain because 1. She's not supposed to be with him in the first place and 2. There is no service.
11 yrs on Maui, she knew her text wasn't going through until she got to the point at Keanae.
I don't like to imagine the scenario when he finally pulled into Paraquats.
Anyway, I think he was telling the truth when he told Malika Lincoln that they talked about baby names on the drive. That conversation probably kept her in the car and at ease until he pulled over.
I believe the family when they say to SC that Charli loved him. Her love and trust may have been her doom.
I pray with conviction that Charli's feticide bill is passed, not that it'll stop anyone from killing but at least her murder would not have been in vain.