exclusively to abc news. >> we just need people to think. there's somebody -- they know something and they don't even know it's important. >> reporter: mollie, last seen jogging july 18th, wearing a sports top, shorts and running shoes. investigators say her evening jogs were often long, on different routes through this sprawling farming community, complicating the search. authorities hoping to find critical clues in her cell phone and fitbit, which they believe mollie had with her. >> we are using technology to its fullest in hopes that we can track and locate mollie. >> reporter: mollie's boyfriend, dalton jack, says he was working a construction job more than 100 miles away, while tibbetts watched his dogs that night. authorities say jack is not a suspect. investigators say they have been inundated with tips. 20 to 30 agents have already conducted more than 200 interviews. david? >> whit johnson tonight. whit, thank you. there is still much more ahead on "world news tonight" this monday. the crash here in new york city. the driver slamming into a restaurant, the suv jumping the curb. several people trapped and