I can't get beyond FW's sketchy actions that day.
He says (after the fact) that he'd gone down to the basement earlier that morning and looked in the wine cellar but saw nothing. Later light-meter readings by a local photographer determined that it would be difficult to see a white blanket unless he'd stepped into the room--like JR did--and from there, the blanket could be seen before turning on the light.
Why would FW be in the basement earlier, anyway? Just the fact that he was previously in the wine cellar proves he knew where it was and how to open it.
But this is the part that I find the oddest. This is from Thomas' book:
"Arndt ordered Ramsey to put the body down on the floor near the front door and told Fleet White to guard the basement door. Instead, White ran back down to the little cellar room, picked up the black tape, and stared at it. By doing so, White unknowingly mishandled a critical piece of evidence."
The "stared at it" part had to have come from FW, so we don't know that he told the truth. FW had already blatantly disobeyed the Detective.
Did he know that there was a good chance his fingerprints were on the tape so he needed an alibi for that? And, what else did he do down there that we don't know about?
This guy is way too sketchy for my likes.
First, bear in mind that it's against board policy to discuss as suspects people such as the Whites who have been cleared by BPD. Let me say, though, that Fleet White is ruled out by lack of opportunity alone. It was a very busy holiday for the Whites. They had two young children, visiting family staying in their home, and had hosted Christmas dinner for them and the Ramseys; and some of the adults including Priscilla stayed up very late talking (till around midnight, IIRC). How would Fleet have left the house by around 12:30 AM without being noticed? The temperature dropped to near 0* that night, and the Ramsey's house was not nearby. Would he have walked there and back in the freezing weather? Would he have risked taking the car and waking Priscilla or others in his house? Few people are out and about in quiet neighborhoods on Christmas night, especially in the wee hours. Would he have risked being spotted/remembered by someone else up late or by a patrolman? If he planned to kidnap JBR, where was he going to keep her in that weather, and how did he plan to transport her in the car without risking getting caught leaving or returning? If he planned to kill her, why did he write the ransom note? And when? Surely not while in the Ramsey's house. He could have taken one of their notepads and Sharpies at an earlier time to write the note beforehand, but that brought the risk of discovery. I could go on, but it's easy to see from these practical considerations how quickly such a theory unravels. And that's before we even touch on his lack of motive and the Whites' protracted efforts to get the governor to investigate the case. I know it's unfair to raise questions that we can't discuss here, but I hope that considering them will persuade you to look at stronger theories instead.