A well thought out post with excellent points.....overridden by the fact he has confessed multiple times.
Amateur opinion and speculation
Yes, he confessed multiple times to family members and so did 2 of the people named in the memo. Why is that different and less important?
And ok, if cops lying in depositions is overridden by the fact that RA confessed, the mistakes that were made at the crime scene as well, that's your opinion, in the real world that's not how things should be or are allowed to be, you can't lie in depositions, even more so when you are LE. And you can't just not look at things at a crime scene.
Confession to family members or not, he is still just charged with felony murder and not murder. Which means they don't think they have enough evidence to get him convicted of murder, which also could mean others are involved.