FILE - In this April 19, 2017 file photo, the casket of Justin Llivicura, 16, is carried from St. Joseph the Worker Church after Llivicura's funeral in East Patchogue, N.Y. Llivicura was one of four young men found slain in a suspected MS-13 gang killing in a park in Central Islip, N.Y., on April 12. President Donald Trump is scheduled travel to New York on Friday, July 28, to meet with law enforcement on Long Island and discuss the MS-13 street gang. His administration has made MS-13 a symbol of the need for stricter immigration laws. WASHINGTON (AP) — Trumpeting his administration's crackdown on illegal immigration and violent crime, President Donald Trump is traveling to Long Island to urge Congress to dedicate more funding to the fight. Trump is set to speak Friday afternoon at Suffolk County Community College in Brentwood, New York, close to where the ultra-violent street gang MS-13 has committed a string of gruesome murders, including the massacre of four young