A member of the MS-13 gang wanted for two murders in New York was captured in Nicaragua on Thursday, USA TODAY reported.

Nicaraguan police arrested Juan Elias Garcia, 21, near the U.S. Embassy in Managua and immediately notified the FBI, who added him to their "Ten Most Wanted Fugitives" list on Wednesday.

Prosecutors claim Garcia fatally shot Vanessa Argueta, 19, and her two-year-old son, Daniel Torres, in February 2010.

"He stood by while his confederate (Adalberto Ariel) Guzman killed Diego Torres," Brooklyn U.S. Attorney Loretta Lynch said. "His loyalty to the international killing machine known as MS-13 was greater than any affection he felt for her or her 2-year-old son, despite the time he spent with both of them."

Authorities say Garcia, Guzman, and a third gang member, Rene Mendez Mejia, escaped to Central Park after killing Argueta and Torres in February 2010.

"The execution-style murders of Vanessa and her 2-year-old son is a new low, even for MS-13," said George Venizelos of the FBI's New York field office.

Officials argue that Argueta had connections to two gangs -- the 18th Street Gang and The Latin Kings -- which are rivals of the MS-13.

When Garcia and Argueta ran into relationship troubles, Garcia received the green light from local MS-13 leader Heriberto Martinez "to retaliate against Argueta."