Serial Episodes 2 and 3

I think the further the story goes on, the more complex it gets.  In these two episodes, I feel like you see a back and forth of information that helps Adnan and information that hurts Adnan.  Personally, when I heard these two episodes I thought Adnan was guilty, because of the information that other people have about him.  Everyone knows a lot, between his friend Jay, and his other friend, (I forget her name).  I feel like if people have a lot of information, then it makes it more likely he did it.  I don't see what reason they would have to lie,