I agree. It's specific and vague at the same time.
What are we missing?
jmo
Was there a shovel with dirt found at their home or in their garage?
Leaves or some plant life attached to a shovel, or inside the car or home that didn't come from any tree in their yard or the neighborhood?
Tree bark, again, not from the neighborhood?
Is there a different grass in the parks that isn't used on lawns in the neighborhood? Poison Ivy?
Is there any gravel at those parks that might get stuck on the bottom of shoes?
turf from a field?
twigs stuck on clothing or in the car from trees not in the neighborhood?
Old petals from flowered trees in car or house not from yard?
a torn jacket or piece of clothing soiled possibly from a park that belonged to Lucas?
Is there any concession stands or little restaurants that sell candy or something that can be bought at the park but not in a store, like penny candy, which might produce a wrapper stuck on step moms' or baby's shoe? A certain kind of bottled water or drink bottle?
Was there any chalk outlines of a baseball or soccer field and the chalk residue was on the bottom of someone's shoe?
A whistle piece from a referee?
A flashlight with soil from the park on it?
a blanket with soil and leaves on it?
folding chair with soil on it?
a disposable coffee cup with soil on it or chalk from a field? grass?
any special rocks there that wouldn't be found in the neighborhood, like mica, on the bottom of shoe or some other object?
A piece of sports net or equipment from the field?