For whatever reason Charlottevillle LE has not or can not do this. Too late to protect JM's identity, and I don't think LE wanted to do so. They want his name and face out there. He's on the posters/flyers being distributed even. Enough to smear him (if he is innocent) and yet they do not have enough evidence to arrest himon suspicion of murder.
As mentioned, others who were on the video, at the mall that night did not come forth either. I believe LE wants anyone there to come forth, and many have not. Clearly, a lot of people have not seen the video footage and plea, or they feel they don't know anything, don't want to bother or don't want to get involved.
Doubt Hannah will be found, dead or alive, within the area where she was last seen. The dogs seem to have gotten a good trail on her, and it ended. Once someone gets into a vehicle, and with this much time having gone by, she could be just about anywhere.
In the first few days, there was more hope that she was dropped off somewhere alive,, possibly hurt, but alive. Now it's more doubtful. As time goes by, the chances of finding her alive greatly diminish.
Longo is caught between the rights of his POI, JM, and the urgency of getting info out of him. IMO, he has not done a great job. He come off very well on camera, but I am not at all impressed with how specifics were handled here. He's slow on the uptake. When JM came in, they should have been ready to hit him with a charge of giving a minor alcohol, so that they could have held him. Didn't have his duck in a row, had to let him go.
If JM does turn out clearly not the perp here, Longo has really gone to far in smearing an innocent man. But we don't know what evidence he has that he dares to go as far as he has without arresting JM. Again, that JM is an AA male, a POI in a missing white woman case in the south is also an issue. Yes, racism is there and this could be an issue to JM. Could also be a reason why Longo and the DA are stepping back on arrest. Would look really bad and get a lot of national backlash if they arrested him and he was not the perp. It's such a stereotype; White woman missing, throw the black male in jail.