A second man was arrested in Washington State, and charged with aiding in the scheme.
Dr. Levine's discovery of gene p53 is aiding in the development of cancer therapies.
Three other Islamic extremists were found guilty of aiding in the conspiracy to abduct Mr. Pearl.
The police said the teenager had admitted to aiding in the attacks on MasterCard and Visa.
"It's getting urgent," said Bob Miller, a spokesman for the United States Forest Service, which is aiding in the search.
On Saturday Mr. Morales said the police had determined the plot involved European mercenaries, with Bolivians aiding in the planning.
The Belgrade district court found seven others guilty of either being accomplices or aiding in the murder conspiracy.
The street was briefly illuminated by searchlights from a police helicopter that was aiding in the hunt for the suspect.
Accusations against the Afghans are less clear, though some are suspected of renouncing Islam and aiding in the proselytizing.
Harbinger's chief operating officer, Peter A. Jenson, was also charged for aiding in the process, according to the complaint.
Fluoride is a mineral stored in teeth and bones that strengthens them by aiding in the retention of calcium.
