4 students from same high school are found dead in a month

In this Sept. 27, 2016 photo, Abraham Chaparro, holds a photograph of his murdered stepson, Miguel Garcia-Moran, outside his home in Brentwood, N.Y. The remains of Garcia-Moran, who was reported missing in February, were found in September. Multiple teenagers from the same Long Island high school have been found dead and while police suspect all the deaths are related to gang violence, they are releasing few details. (AP Photo/Claudia Torrens) (The Associated Press)

In this Sept. 27, 2016 photo, a poster featuring photos of Nisa Mickens and Kayla Cueva is part of a memorial near the spot where their bodies were found in Brentwood, N.Y. The girls, who were best friends, were found murdered. Multiple teenagers from the same Long Island high school have been found dead and while police suspect all the deaths are related to gang violence, they are releasing few details. (AP Photo/Claudia Torrens) (The Associated Press)

In this Sept. 27, 2016 photo, a memorial for Nisa Mickens and Kayla Cueva is located near the locations where their bodies were found in Brentwood, N.Y. The girls, who were best friends, were found murdered. Multiple teenagers from the same Long Island high school have been found dead and while police suspect all the deaths are related to gang violence, they are releasing few details. (AP Photo/Claudia Torrens) (The Associated Press)

Four teenagers from the same Long Island high school have been found dead in the past month. And while police suspect all are related to gang violence, they are releasing few details.

The case in suburban Brentwood began with the discoveries of the beaten bodies of two girls, ages 15 and 16, on successive days. Days later, police found the skeletal remains of two boys, ages 15 and 19.

Some students are afraid to walk alone, and school administrators are warning students not to wear clothing that could risk offending street thugs.

A law enforcement official told The Associated Press that the Salvadoran gang MS-13 is suspected, although no arrests have been made. The official spoke on condition of anonymity because the person was not authorized to speak publicly.