. >> reporter: orange county prosecutor matt murphy later reviewed the case. he noted blood on everything the killer must have touched -- the steering wheel, above the glove compartment, the driver's side armrest and, of course, the trunk release. but one noteworthy place where there was no blood? the driver's side seat lever. 4'11" cathy drove her car with the seat moved closest to the steering wheel. but when police found the car, the seat was racked all the way back. suggesting that somebody taller than cathy was operating the car. >> not only operating the car, but did that before the murder itself took place. because that was touched, and that seat was moved without any transfer of blood at all. so the seat was moved back before the killing started. >> reporter: and, if so, perhaps it was because cathy knew her killer and opened the door for him or her. investigators also found cathy's right shoe on the floorboard of her car and her sock covered in dirt. she got out of the car? >> yes, absolutely. cathy had fled from the vehicle on foot, had most likely b

>> matt patrick murphy, final question to you. democrats believe is her ushd, articulate, he has a range of experience. what's it going to take for him to break out of pack here? >> well, i think you're seeing it already. you see the momentum from the last quarter, number one, of all the candidates in raising money. but most importantly he is showing day in and day out from sun up to sundown he has the energy, he has the vision, and he has this movement across america. over 400,000 strong of folks that are joining our campaign and saying let's put this country back on the right track. let's win the era. let's have a new generation of leaders. so we bring our troops home from iraq and afghanistan, we make sure that we invest in infrastructure, in education at a time when this white house is disinvesting in those things. >> all right. patrick murphy and felipe, my thanks to you both. >>> up next, it's one of the biggest storylines heading into tonight. the make or break moment for front runner joe biden. but is it really? as his riv