We do not know exactly who or how many people were in Brewer's house with him and Shannan Gilbert. The 'drifter' from the in his book claims he was not present, but other reports imply that there was at least another male in the house with Brewer. Law Enforcement who have absolved Brewer of any wrongdoing have also absolved this house guest whom they refereed to as the 'drifter'.
Brewer is not talking.
It is amazing to me, I have heard of drivers who have a burnt out tail-light stopped, questioned and ticketed, but JB hires a prostitute, (Illegal in New York); there likely were drugs involved, (illegal in new York); 911 is called,(to report criminal activity); and the woman disappears and ends up dead, but no charges are laid.
Does that make sense to you?