article_snippet.sent: Two others boys who attended Rockland High School with Jared Quirk in Rockland, Massachusetts, also died in the past six months .
article_snippet.sent: A third contemporary, Patrick Sullivan, 17, was killed in a three-car pileup on New Year's Eve.
article_snippet.sent: Joshua Rose, left, died on October 1 from an unknown cause, while Patrick Sullivan, right, was killed in a New Year's Eve car crash.
article_snippet.sent: Patrick Sullivan, right, was killed in a New Year's Eve car crash were 17 and attended Rockland with Quirk .
article_snippet.sent: Pictured is Rockland High School in Rockland, Massachusetts, where all three were students .
highlights_snippet.sent: He is the third senior from Rockland High School, Massachusetts, to die since October .