Norberto Gonzalez Claudio, who has been a fugitive for more than 25 years, was arrested by FBI agents and Puerto Rican police in the central town of Cayey, El Nuevo Dia reported.
Gonzalez Claudio, 65, was wanted for the alleged armed robbery of a Wells Fargo armored-car depot that was carrying $7 million in West Hartford, Conn., Sept. 12, 1983.
Two of Norberto's brothers, Orlando Gonzalez Claudio and Avelino Gonzalez Claudio, were arrested in 2008 and 16 others were indicted for the crime.
One of the two men accused in the robbery remains at large.
Gonzalez Claudio, senior figure in the Boricua Popular Army, better known as Los Macheteros, was alone when the FBI agents and police arrived at his home and did not resist, officials said
Prosecutors deemed the alleged crime as an act of terrorism because of the amount Gonzalez Claudio is being accused of taking.
The 65-year-old could be sentenced to 275 years in prison if convicted on all counts.