Oscar López Rivera

Oscar López Rivera (born January 6, 1943) is a Puerto Rican nationalist. He was one of the leaders of the FALN.
Imprisonment.
In 1981, López Rivera was convicted and sentenced to 55 years in federal prison for conspiracy, use of force to commit robbery, interstate transportation of firearms, and conspiracy to transport explosives with intent to destroy government property. In 1988 he was sentenced to an additional 15 years in prison for conspiring to escape from the Leavenworth federal prison.
López Rivera was among the 14 convicted FALN members offered conditional clemency by U.S. President Bill Clinton in 1999, but rejected the offer.
The imprisonment of López Rivera was opposed or supported by individuals and groups representing political, religious, and other constituencies. Some called him a terrorist, but others said he was a political prisoner. Several U.S. Congressmen supported Oscar López Rivera's release from prison such as Senators Bernie Sanders and Elizabeth Warren.
Commutation.
On January 17, 2017, President Barack Obama lowered López Rivera's sentence and was released from prison on May 17, 2017. At the time, he was the longest-incarcerated member of the FALN.