I think that the problem is that Serial gave people the case in bits and pieces. It wasn’t until I read the Circuit Court opinion that I realized that Deborah Warren had testified at trial to seeing Hae alive at 3pm:
http://www.mdcourts.gov/cosappeals/pdfs/syed/baltcityccmemorandumopinion.pdf
There’s a footnote int that opinion (#8, p. 14) that also makes it clear that the defense counsel was focused on that time line, using it to cross-examine other witnesses: “did you ever become aware that Debbie Warren, her friend, had seen her at about 3 p.m.?”
The problem with the “alibi” is that it hurts, rather than helps, Adnan: Asia is a 2nd witness, in addition to Deborah, who sees Adnan hanging around the general vicinity where Hae is seen at 3. That tends to support the idea that Adnan did indeed get a ride with Hae after school.
I really don’t get the prosecution’s timeline argument at all-- it just doesn’t fit the testimony of his witnesses. I think he might have been trying to get the times to match up with the cell tower ping records – but the ping locations aren’t accurate for incoming calls. I also think that the prosecutor was trying too hard to get the times for the calls to match up with the supposed Best Buy meeting spot – but it’s very possible that more time intervened between when Adnan called and when Jay met him. That is, Adnan’s call could have just as easily been “meet me at Best Buy in 20 minutes” as “come get me right now, I’m at Best Buy”.
But the prosecutor didn’t have to prove a timeline beyond a reasonable doubt, and the jury didn’t have to buy the time line the prosecution offered. They could go wherever the evidence took them – with evidence including witness testimony. They would have been specifically instructed that lawyer’s argument are not evidence. So I’m thinking that they know from Deborah that Hae was alive at 3pm – they are going to render their verdict based on the belief that Hae was killed sometimes after that.
The other problem with Asia is that she puts Adnan in the library at 2:40, whereas Deborah’s taped statement to the police put Adnan in the school building, near the guidance counselor’s office, at 2:45. So not only is Asia unhelpful as an “alibi”, her testimony is somewhat inconsistent with the witness who is likely to be given more credence by the jury. (Of course he could have been one place at 2:40 and another place at 2:45 … but then, what’s the point of the library testimony at all?)