the man in the baseball cap looked familiar. >> one person looked like quisenberry. >> as in james quisenberryend who phoned her minute before the murder. earlier, he told the detective how much he wanted to help the investigation. >> find whoever it is. >> rick wasn't buying any of it now. quisenberry had become a prime suspect, though rick wasn't ready to arrest him. not yet. not until he had the other man. but that wouldn't be easy. although there were two suspects in his sights, the mystery man was not in focus. >> how clear is the image of the second guy? >> it's not very clear. >>> coming up, it was an image that was all too clear to little erica. >> there was a guy that come in the daycare and they had braids in their hair and erica said don't let him hurt me. >> when "date line" continues. ♪ no, you goof. i can't believe how easy it was to save hundreds of dollars on my car insurance with geico. nice. i know, right? ♪ [nose plays a jazzy saxophone tune] believe it. geico could save you 15% or more on car insurance. >>> i'm dara brown. john kelly will be leaving his post by the end of t