Not only is Alicia confident about this "poor man's deposition" idea, she's so much so that she would also like to get about six other plates spinning at the same time, and Cary over there just bitching himself pink the entire time: Kalinda is at the crime scene, asking Julius questions on the phone, and then he runs those questions to Alicia, and she asks them on record at the hearing, and then Julius relays them back to Kalinda, and the whole time Fierstein's like, "Yeah, I know what she's doing, but I am a hippie and I believe in justice and zucchini bread and gay cinema and I need you to chill."
As far as the facts, I mean, who cares. The shooter was inside the store, about ten feet back, and the witness was twenty feet away, on the sidewalk opposite, and then he saw the robber going into the back of the store, where the toys are, and the main thing of this part is that there's a coded lock on the back door, so the real robber couldn't have gotten out that way. Which we already knew, because we were in the back of the store, but it doesn't really matter anyway, because it's about establishing doubt.
The next witness is a detective who, yes, has heard of our old friend cross-racial identification, but doesn't give it a hell of a lot of credence, because it's hard to believe that black people would have as much trouble telling white people apart as vice versa, due to black people generally looking more alike than white people do, from where he's sitting. He doesn't actually say that, but in an episode entirely about white privilege it's certainly the funniest example.
Our witness gave a general description of the suspect at first, but then talked to the sketch artist... But only after he had seen Travis Dolan, who was just hanging out in the police station minding his own. Which normally couldn't happen because he would be in custody, but did this time because he wasn't a suspect -- just a witness that didn't see anything. Anyway, the detective hates Alicia some more, and Cary is bored by everything.
Meanwhile, a sullen slacker dude is half-interested in telling Kalinda what he saw from the fish shop across the way, but also half-interested in being really unhelpful. He looks a bit like the sketch, to be honest, and in any case he doesn't recognize it. Also, he smells like fish, and fish plus resentment is a terrible thing to be around, so Kalinda should get a move on and not worry about this kid anymore.