0 Facts about MS-13 in Maryland, Virginia (Virginia): Posted by Randy Crank on May 8, 2017 at 10:26pm MS-13 gang violence has been a growing problem in Montgomery County and Northern Virginia. MS-13 or Mara Salvatrucha has roots in El Salvador and a network stretching across the US and Latin America. Montgomery County, Md., has experienced about 16 gang-related homicides in the last two years, according to Montgomery County State's Attorney John McCarthy. Increasingly, MS-13 is on the radar.
