UPDATE: Cops say the have arrested the person behind the MS-13 murder of a teen found dead in Massapequa Preserve. The name is expected to be released during a press conference at 10:30 a.m.
Investigators believe he was killed by MS-13 gang members more than two years ago. They say Lemus' body was found about 100 feet away from another set of remains unearthed in 2017.
Lemus' killer has not been found.
Detectives ask anyone with information to call Nassau Crime Stoppers at 1-800-244-TIPS.