An MS-13 gang member has pleaded guilty to federal charges in two Nassau gang killings, according to prosecutors.
Prosecutors say Kevin Cuevas Del Cid posed as a woman on Facebook to lure Kerin Pineda into a wooded area near the Merrick-Freeport border in May 2016.
Once there, prosecutors say Pineda was hacked to death with machetes by Del Cid and other gang members…