As reported by the New York Post:
Ten illegal immigrant members of the notorious MS-13 gang — including one who was previously deported — were indicted Thursday in a wave of Long Island violence that included the slaughter of two teenage girls.
....
http://nypost.com/2017/03/02/illegal-immigants-from-ms-13-gang-arrested-for-teens-murders/
What a difference a source makes, eh ? UPI - absolutely no mention that they were ILLEGAL IMMIGRANTS - just that they came from Central America.
New York Post - nails it.