YES, except I think she was not very drunk or lost. There has been a lot of exaggeration about that but she is moving pretty well and purposefully, and we have a lot of video time of her not drinking.
On the other hand we know she is going to a party and is no stranger to drinking (and this is reasonable, she is European and has been living with and experiencing alcohol for several years. Yes she lives in VA, but is in Europe every summer.)
We also know she is extremely sharp, worldly, witty. This is a smart woman, studious. No evidence of any interest in drugs, but like most college students knows how to party.
Her room has 20 or 30 booze bottles on top of the cabinet. How did she accumulate those, being under age? Well, people OF age buy it for her, of course. (PD should ask her roomies about that, "Hey, where'd all those bottles come from...?)
There are no drug deals, ruffies/spiked drinks, sex slave rings!
So what is she doing?
She's going to a party, and she is not going empty handed. She is going to buy something to bring, which is not a big deal to her except the silly US drinking age.
She goes right to McGrady's, looks twice in the beer garden for someone she knows, doesn't find him. Looks for his car, then looks for a third time at the front door. She goes further to the mall, and then finds him. First, they pass by each other going opposite directions and she doesn't see him. Then LJ wheels around to go the same direction, then off video passes the other group, calls out, "Hey, Hoo!" He doesn't know her by name, nor does she know him by name, only by sight. Hannah turns around and spots him, lets him catch up and discreetly tells him she needs some drinks for the party. (WG sees all this and bails.) LJ walks with her toward Tempo, now on the second video. He pops in, buys it, brings it out they part.
She heads back on Waters to try to find the party and gets to her neighborhood, but can't remember what apartment the party is in, texts she's coming but "lost". She is not LOST lost, she just can't find the party.
Then something bad happens.
LJ probably isn't involved beyond helping her out with the purchase but he isn't going to talk. He is black and she is white, young, connected. The police are not his friend. In his mind he might even get shot before this thing gets solved. Heck, they already took his car and ransacked his house! At the least the DA would need to give him immunity for buying for her (which he probably did in the past as well, for her and others.) But probably he still won't talk, and if you think about it from his perspective it makes sense.
I do hope they find her soon, sounds like a one-of-a-kind person. The world needs her.