After Long Island Murders, One Scholar Explains The MS-13 Gang

Published April 28, 2017 at 1:52 PM EDT

In this April 13, 2017 file photo, emergency personnel walk near a crime scene where four bodies, believed to be the victims of the brutally violent MS-13 street gang were found in Central Islip, N.Y. (Seth Wenig/AP)

Attorney General Jeff Sessions is expected in Islip, New York, on Friday, where he’ll meet with Suffolk County law enforcement about a recent spate of brutal murders by the MS-13 gang.

The gang also made headlines earlier this month when President Trump tweeted that “weak” Obama-era policies allowed MS-13 to flourish, and that his proposed border wall would prevent gang from entering the country:

The weak illegal immigration policies of the Obama . allowed bad MS 13 gangs to form in cities across U.S. We are removing them fast!

— Donald J. Trump (@realDonaldTrump) April 18, 2017

The Democrats don't want money from budget going to border wall despite the fact that it will stop drugs and very bad MS 13 gang .

— Donald J. Trump (@realDonaldTrump) April 23, 2017

Here & Now‘s Robin Young checks in with Charles Katz, director of the Center for Violence Prevention and Community Safety at Arizona State University.