EAST MEADOW, N.Y. — Police on Long Island say an admitted MS-13 gang member has been arrested and at least five others may have been involved in the death of a teenager found buried in the woods.

The remains were discovered on Wednesday in East Meadow.

The commanding officer of the Nassau County Police Department's homicide squad, Det. Lt. Stephen Fitzpatrick, said Thursday that authorities believe the teen was killed with a machete a year ago.

He says the gang may have believed that the victim was "disrespectful" or posed a threat.

The MS-13 gang has been blamed for at least 25 killings since January 2016 across a wide swath of Long Island.

The violence has led to congressional hearings and visits from Republican President Donald Trump and U.S. Attorney General Jeff Sessions.