The FBI arrested Gerardo Hernández, René González, Antonio Guerrero, Ramón Labañino and Fernando González Llort in 1998, after three years of investigation. Says the Journal:
Hernández was convicted of conspiracy to commit murder in the Cuban Air Force downing of two civilian aircraft flown by Cuban exiles from Florida in 1996. Four Americans died. The prosecution also showed that the "wasps" had sought to infiltrate U.S. military installations and to discover unprotected points along the Florida coast where arms and explosives could be brought into the country.After a six hour meeting with Castro, expressed doubts about the trial and conviction of spies. He also promised to speak with President Obama about a pardon. See story here.