Abdel Basset al-Megrahi was found guilty and Al-Amin Khalifa Fhimah was acquitted in the bombing that took place over Lockerbie, Scotland, on Dec. 21, 1988. The case has taken 12 years to resolve. But the verdict may not be the end for the families whose 270 loved ones perished in the air and on the ground that night. In a press conference following the announcement of the verdict, the families vowed to fight on, saying the real criminals have yet to be caught. They seek acknowledgement that the bombing was an act of state-sponsored terrorism, and they hold Libyan leader Moammar Gadhafi responsible.

"It is a clear triumph for justice that Mr. Megrahi was found guilty," said New Jersey resident Aphrodite Tsairis, whose daughter was killed in the bombing. "It clearly points to state-sponsored terrorism. It is now up to the U.S. to uphold its policy of acting against state-sponsored terrorism."

The Scottish judges trying the case ruled that Megrahi, who was an aviation security chief for Libyan intelligence, planted the device that blew up the plane. He was sentenced to life in prison. Having already served two years at Camp Zeist in Scottish custody, he has just under 18 years to serve before appealing for parole. Fhimah was discharged and allowed to go free after the trial.

"My heart broke when Mr. Fhimah left the courtroom," Tsaris said. "There is no way one person could have gotten that bomb on the plane himself."

Outside in the cold, foggy dampness of the Dutch winter, ringed by a mass of reporters and trying to contain her emotions, Helen Engelhart of Brooklyn, N.Y., also vowed to keep pursuing the case.

"All the people responsible have not been punished," she said, fingering a button containing a picture of her husband, Tony Hawkins, who died in the disaster. "When my husband died years ago, I vowed to fight to find out what had happened to him. Gadhafi cannot be let off the hook."

American Brian Flynn, whose daughter Samantha was lost in the disaster, echoed the sentiments of most of the other victims' family members.

"Gadhafi should be tried as a war criminal," he said. "He ordered the destruction of an American airline with innocent civilians on it, and I think that appropriate action should be taken."

Prosecutors said the two men conspired to smuggle a suitcase containing a bomb onto a flight from the Mediterranean island of Malta, transferred it to a flight at Frankfurt, Germany, and then loaded it onto Pan Am 103 out of London.

Meanwhile in Washington, other victims' families were lobbying the U.S. government to take a harsher stand against Libya and against terrorist acts.

Of the 270 killed, 189 were Americans. There has been speculation that families would push U.S. courts to pursue restitution from the Libyan government.

"That will be up to the relatives to decide," said David Ben-Aryeah, an advisor to the families. "It is hard to believe that two low-level terrorists were behind the whole thing themselves."

Sanctions against Libya involving trade, travel and a ban on U.S. oil companies operating there were temporarily suspended in 1999 after Libya handed over the two bombing suspects.

President Bush said Wednesday that the U.S. would continue to put pressure on the Libyan government. On Tuesday, Secretary of State Colin Powell said the sanctions would not be lifted yet. "There are other things that the Libyan government will be expected to do," Powell said.

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