An illegal immigrant who led a Fairfax County-based MS-13 cell was indicted late last week for allegedly conspiring to murder a federal witness who helped put a former leader of the group behind bars for life in 2006.

According to court records, Erick Turcios-Lazo, also known as “Scorpion,” attended two general MS-13 meetings in January where he and other gang members discussed killing a fellow member they believed to have been a government witness in the 2006 trial of former clique leader Wilfredo Montoya Baires.