Police Friday said that new information in the case of a missing Aurora boy may help narrow down their search.

Obviously, it's a painstaking process, said Aurora Public Information director Dan Ferrelli. Police Department released an analysis of sediment and plants on the SUV which Timmothy and his mother Fry-Pitzen used around the time of his disappearance May 13.

On May 11, Fry-Pitzen took her only son out of Greenman Elementary School in Aurora. Without telling any family members, the two went on a three-day, 500-mile road trip, stopping at zoos and water parks in northern Illinois and Wisconsin.

On the third day, Fry-Pitzen finally called family to report she was fine, and Timmothy was heard in the background. The next morning, police found her body in a Rockford motel. Fry-Pitzen's suicide note said Timmothy would never be found.

Police announced that sediment and plant material on the SUV indicate it had been stopped for a time on a wide gravel shoulder. Near the gravel area, where the vehicle stopped, the SUV was backed into a grassy field near a spot that is treeless. The lab results indicated there were birch and oak trees nearby but not directly at the spot where the SUV stopped.

Dan Ferrelli said the lab continues to examine the SUV. Despite the detailed plant and road information, police still do not have enough information to conduct specific searches.

Authorities also provided four brief surveillance videos taken May 11-13 at various locations after Timmothy's mother, Amy Fry-Pitzen, picked up the 6-year-old at his Aurora elementary school.

The videos show Fry-Pitzen and Timmothy walking around the KeyLime Cove Resort in Gurnee and checking in at the Kalahari Resort in the Wisconsin Dells. Police also provided security camera footage of Fry-Pitzen entering and exiting Sullivan's Foods in Winnebago.

Timmothy is about 4 feet 2 inches and weighs about 70 pounds. He has brown hair and brown eyes.