they were working with. >> mary continued to put herself out in the public eye. >> please welcome mary stavikfinding the person who did it. >> it was important for mary and for us to make sure that her story was still out there, because we didn't have any answers. we didn't have any leads. >> why come here? why talk about it again? >> well, i guess because i'm hoping that somebody who's out there listening will remember something that will help the law enforcement people find the person who killed my daughter. >> the tip line was set up after mandy was found. >> crime stoppers will pay up to $1,000 for information that leads to an arrest and charge. >> the tips were coming in faster than the department can handle. >> they were numerous. i mean daily, hundreds of tips, and we ran every single one of them down. it was massive. >> they had an fbi profile that projected it would be someone in the community. >> paul malek was an early person of interest for several reasons. first of all, he was a neighbor of the staviks. he lived very close by. also, he was one of the last people to see mandy aliv