From what I remember in the first days of Hannah being reported missing, she had left a party to join friends elsewhere. Why she went alone, we don't know. Why any of her friends let her go alone in her condition is also a question. They probably did not notice or pay attention as students do this all of the time. According to a report, she went the opposite direction from where she wanted to go and did not plan to be in that area at all and was probably very disoriented. So, no, I do not believe she deliberately set out there to meet anyone, particularly not JM. JM shows up earlier on video as well and he seems to be hanging around there, not looking to meet Hannah.
I think she was thoroughly lost, did not want to call authorities because she knew she had been drinking and that it likely showed, so when JM asked if he could help her, told him where she wanted to go. He bought her and him drinks in Tempo, saying he wanted a drink first--no idea if she even ordered anything, police would know that. The theory is that they then went off camera when they went to his car which was not in range of any video devices. Or she may have gone off in another direction after Tempo. Whatever happened, the trail was lost for both JM and Hannah.
Longo said that they were able to track some of JM's movements later, how much later, don't know, but there was no sign of Hannah in what they investigated. From what reports stated, three bags of evidence was taken from the car/apt search initially, and now more things were taken. But no word on anything found. Also no word on questioning any of JM's "friends" or whoever were at the apartment with him when LE showed up with search warrent. Looks like JM has no alibi for that night but LE can't pin him with Hannah past the sighting at Tempo when she was alive and walking.