more now from cnn's ryan young in iowa. >> this is not the ending so many in this community wanted. in fact, it's not many times you go to a news conference and have omany people behind you who start sobbing about this mollie tibb etc. was somebody people wanted to find. after we got the details we got, people started weeping very loudly, very upset from the details, they started going through hundreds of hours of that video. they saw a black car. they were able to glean it was a man following mollie along. eventually he got out of the car. >> he tells us he ran alongside her or behind her. at one point he tells us polly grabbed ahold of her phone, leave me alone, he took off running. he in turn chased her down. they say he confessed to this. in fact, they took him to the body just yesterday. now that i have this man in