This is the kind of bullying crap that doesn’t come out of nowhere. The alleged assailants are 16-18 years old. Come on, parents – where are you? Do you not know your children? (WPIX):

Police say a fourth teenager has been arrested on Friday in connection to the beating of a 14-year-old classmate that was fueled with anti-gay remarks.

The unidentified 14-year-old boy from Elmont was arrested just after midnight and charged with third-degree assault as a hate crime and second-degree aggravated harrassment.

Three other Long Island high school students were arrested Wednesday after they allegedly stomped and kicked their classmate, referencing his sexual orientation during the brutal attack, police said.

Nassau County Police say on Tuesday at 2:15 p.m., 18-year-old David Spencer of North Valley Stream, 16-year-old Chase Morrison of Lakeview and 14-year-old Roy Wilson of Baldwin assaulted their 14-year-old classmate on a bus leaving the Nassau BOCES Career Preparatory High School in Hicksville.

Spencer and Morrison threw insults at the victim who they apparently perceived to be gay as the pair and Wilson beat the boy up.

What’s even more terrifying from the victim’s perspective is these bullies continued the abuse the NEXT DAY, according to police — hurling anti-gay remarks at him and slapped him across the face and on the head.

Where are the parents!? Why does the bus driver do nothing to stop the violence?