"No witnesses spotted a truck or van?"
Sheriff Isaac said that a witness spotted a black and gray sport utility vehicle on a road near Morning Star Baptist around the time the fire was reported.
Another witness supposedly spotted him in his car.
A witness spotted a man with a drawn gun standing over her body behind a fast food restaurant.
One of the first big potential breaks came in 1987, when a witness spotted a man believed to be the Unabomber.
In the 1980's, he was questioned by detectives after a witness spotted his truck near where one of the victims disappeared and managed to pass a polygraph test.
Not every time is it foolproof though, and at one crime scene, a witness spots the main culprit.
The authorities began to search for Mr. Rudolph almost immediately after witnesses spotted a truck near the clinic that was traced to him through its license plate.
It was not clear exactly how Mr. Tucker had been arrested, though Detective Climack said that the New Jersey police picked him up after a witness spotted him.
On November 29, 2006, a witness spotted a suspicious man in the parking lot of the Fifth Third Bank one hour before it was robbed.