. >> reporter: melissa nelson, then an assistant prosecutor who joined the case, recalls the fear. >>ared, people she worked with were alarmed. it was a very scary time for that community. >> reporter: tiffany zienta raised in jacksonville beach couldn't believe this had happened to someone she knew. >> i mean, they kept calling it the bloodiest crime scene in jacksonville beach in 25 years. that's not really comforting to feel or to hear. >> reporter: ashley burg was also frightened, for another reason. detectives thought her brother joe had been too vague about where he'd been in the hours surrounding corey's death. did he have a solid alibi? >> not really, no. >> reporter: what was he doing? >> well, you know, he was at the apartment just hanging around. and he comes and goes. so we couldn't really establish a solid alibi at the time of the crime. >> reporter: their interest grew when they found a hair on a sock in corey's bedroom. the hair looked like it could have come from joe. >> i know we did a microscopic comparison. and that the microscopic comparison developed that likeness

and joining us now is iashia nelson along with her sister melissa nelson and their rescuer james murphymuch for being with us and, iashia, when we last spoke to you 24 hours ago, you were desperate. tell me how you and your family are doing now. >> we are grateful. we are grateful that we was able to get out of that water. i wouldn't wish that on nobody. >> it was so scary because you just didn't know when help was coming. and finally help came in the form of james right there so, james, tell me what happened. how you came upon iashia and what the rescue was like. >> well, basically the water in order to get to them, we tried a few boats. the boats are very dangerous. the currents were very strong as you can see in the videos. it was a big risk and we just wanted to basically get them to safe grounds. first, we had to screen the entire property to know what we were working with. so with that being said, though, currents is just strong out there. i want to just wish anyone that's in this water to be safe and be aware of the currents. the currents are very strong out here. >> yeah, you ca