did not kill karen swift." they just tested david swift. they had tunnel vision. >> the defense also argues that david had a "serious" knee injury, affecting his mobility, so he wouldn't have been physically able to dispose of karen's body. >> they said he had this injured leg, so he could not have possibly picked her up and placed her in the cemetery. >> and did you notice anything about his leg or how -- how he was walking? >> he had a knee brace on, and he had crutches. >> but multiple witnesses for the state dispute the seriousness of david's knee injury. >> was he using crutches? >> i never seen no crutches on saturday. >> did he appear to be injured in any way? >> you could see him using his crutches while he was talking, but after he got done talking and they went in the house, he just walked, like he didn't needed crutches anymore. >> even if he is faking it, it still -- it -- it still, there's a visual there. the jury's repeatedly seeing people get on the stand and say, "yes, i saw him on these crutche

effort. >> reporter: after she unknowingly got stolen tickets, stubhub helped karen perry buy new seats, and she saw taylor swift> we just had the best night of our entire lives. hands down. it was better than my wedding. it was so good. >> reporter: so what can you do to protect yourself? well, check early and often that your tickets are still in your account and haven't been transferred. buy from sellers who ffer >>> well, this election day may well go down in history. so you might want to take a picture. and these days more people are keeping their cell phones in their pockets and preserving the moment with a relic of the past that's now making a big comeback in the digital age. itay hod reports. >> reporter: it's a developing trend. >> so cute. >> reporter: where old school charm meets today's selfie culture. photo booths, those once ubiquitous machines, are making a comeback. >> there's something about the sounds that just make it part of a bigger experience. >> reporter: kayla kaine is a 26-year-old content creator. she says these vintage photo booths are becoming popular among those looking for an authent