My understanding is the Deepak works at the internet cafe. SC goes there sometimes. Supposedly he overheard a phone conversation about the "dropped her off at the HI and she fell" story. Then he decided he would be a good guy and help the local brother out by making a false statement about seeing her 'staggering around' the HI. I agree with the question Greta asked "Is he a nut?".
Well...I was clear on the nuttiness of his story and the lack of any understandable motivation as you say. I was just fuzzy on how he came across some kind of communication about or from Deepak, and I thought it was connected with the internet cafe. But the exact details were hard to nail down, at least for me. Now I see it is pretty hard to nail down, period. LOL