MS-13, which originated in Los Angeles, California and later expanded to other parts of the country.
They have the reputation for extreme violence and for killing with machetes.
Tariq Jackson, 18, speaks on March 21, 2017, in Washtenaw County Trial Court at his sentencing for the 2015 shooting death of 20-year-old Keandre Duff at a street party in Ypsilanti.