emile rooney joins me with emotional testimony tiis week. who did you hear from? >> we did, hari.erson we heard from that stuck out in everybody's mind was a young woman named jessica kenski. she came into court, wearing a skirt, you could see two stumps out from under the skirt. it's the first time dzhokhar tsarnaev recognized anybody. he's been completely disengaged the whole time. he looked at her, at her stumps and moved away. but she was emotional, poignant, funny, talked very powerfully about how her life and her husband's life have changed. they both lost legs. she ended up having to have her second leg removed just this month -- actually a couple of months ago in january. >> sreenivasan: let's talk about the surveillance video that picked up steam and heat and light this week. what did we see there? >> after the victims were done, the f.b.i. started its testimony this week. it was impressive, i have to say, hari. the first piece of video we saw was 7 minutes of stitched-together surveillance viz owe from businesses restaurants, iphones, you name it any kind of device that