Three illegal immigrants were charged Saturday in connection with the murder of a 17-year-old Virginia high school student who was gunned down on his way to a bus stop Friday morning.

According to The Washington Post, Danny Centeno-Miranda, who attended Park View High in Loudoun County, was about 50 yards from the school bus stop when he was shot twice in the back.

Centeno-Miranda, who moved to Virginia from his native El Salvador to live with relatives in 2013, died later at Inova Fairfax Hospital.

Three suspects, from Sterling, Va., were arrested Saturday morning, the Loudoun County Sheriff’s Office announced, according to the paper.

“This was not a random incident.”

- Sheriff Mike Chapman

A 17-year-old is charged with second-degree murder and with using a firearm while committing a felony. His name was not released because he is a minor. Henry Dominguez Vasquez, 20, and Juan Aguirre Zelaya, 18, also were arrested and charged with being accessories to the shooting and with possession of a firearm while in the country illegally, the paper reported.

Authorities have learned that the suspects are undocumented immigrants based on information given to them by the suspects, Kraig Troxell, a spokesman for the Loudon County Sheriff’s Office, told The Washington Post.

All three suspects are to be arraigned Tuesday. They are being held without bond.

“This was not a random incident,” Sheriff Mike Chapman said at a news conference Saturday, the paper reported. “The suspects and the victim were known to each other.”

Investigators said at the news conference that the victim knew the suspected assailants from the neighborhood and may have lived in the same complex. The accused shooter may have attended Park View High with Centeno-Miranda, Richard Fiano, commander of the criminal investigations unit, said.

“We’re looking into that there may be some gang affiliation, however we don’t know what the reason was just yet for the incident taking place,” Chapman said, according to the paper.