In the book Ernest talks to Sandra Styles (married name Butler)
"A few people were milling around on the first floor," she explained. "One was a black man." That was apparently the same man Ms. Adams had mentioned. I casually asked her if William Shelley or Billy Lovelady were there.
"No," she said, emphasizing she would have recognized them since she knew both men well.
"The Girl On The Stairs" pg353
As for Billy Lovelady's WC testimony about Vicki Adams. as I say, it's a joke. Completely unprompted and totally out of context he blurts out her name:
Mr. BALL - You came in through the first floor?
Mr. LOVELADY - Right.
Mr. BALL - Who did you see in the first floor?
Mr. LOVELADY - I saw a girl but I wouldn't swear to it it's Vickie.
Read the full testimony. Nobody had mentioned anything about Vicki Adams up to that point, it was the unprovoked answer of a badly coached witness. He even goes on to say Shelley was talking with her, something Shelley had already denied.
It's okay if you don't want to accept the timeline Martin's putting forward. It's not mandatory. But at least it's reasonable.