According to the release, Ternus and another man attempted to sell two of the works to undercover agents in Barcelona, Spain for three million euros. They sold two works, and attempted to keep the other two as leverage in case they got arrested. This plan revealed its flaws in June though when Ternus' co-conspirators were arrested in Southern France when they attempted to exchange the final two works.
Ternus was arrested by FBI and ICE agents in Florida, and its likely a condition of his plea agreement was to give testimony about the thefts themselves, which should aid French authorities in their prosecution of the co-conspirators in Europe.
The arrests are a very good thing, but it will be interesting to see what Ternus' and his conspirators prison sentances will be, as art theft is typically not given long prison terms. Though the armed nature of the robbery may lead to harsher penalties for the actual thieves in Europe.
This is nonetheless a very good example of cooperation of Federal Agents and prosecutors, and their French and Spanish counterparts. Its a job very well done, and an indication why theft of these kind of high-profile works is very silly. I've included images of the recovered works from the press release below:
Permanent loan, Musée des Beaux-Arts, Nice; © Musée d'Orsay, Paris Claude Monet (French, 1840-1926). Cliffs Near Dieppe, 1897. Oil on canvas. 65 x 100 cm (25 9/16 x 39 3/8 in.).
© Musée des Beaux-Arts, Nice Jan Brueghel the Elder (Flemish, 1568-1625) and Hendrik van Balen the Elder (Flemish, 1575-1632). Allegory of Earth, ca. 1611. Oil on panel. 53 x 94 cm
©Musée des Beaux-Arts, Nice Jan Brueghel the Elder (Flemish, 1568-1625) and Hendrik van Balen the Elder (Flemish, 1575-1632). Allegory of Water, ca. 1611. Oil on panel. 53 x 94 cm
Permanent loan, Musée des Beaux-Arts, Nice; © Musée d'Orsay, Paris Alfred Sisley (French and British, 1839-1899). The Lane of Poplars at Moret, 1890. Oil on canvas. 76 x 96 cm (29 15/16 x 37 13/16 in.). (20 7/8 x 3)