Derek Estrella, 16, was last seen leaving Nutley High School during lunch on October 27, 2023, and did not return. The last confirmed sighting came the same day at 5:11 p.m. on surveillance video at the New York Public Library on 5th Avenue in Manhattan, where he appeared with his biological mother Michelle Durkin and her twin sister Nicole Durkin.

Derek is described as a white male, 5 feet 8 inches, about 134 pounds, with brown eyes and long brown hair. He was last seen wearing glasses, a black hooded sweatshirt, black sweatpants with a silver or white stripe, red sneakers, and carrying a black backpack. Authorities have suggested he may have left to avoid an upcoming change in his foster care placement and that his mother and aunt may have been assisting him; descriptions of both women have been circulated by police.

The Nutley Police Department and the New Jersey State Police Missing Persons and Human Trafficking Unit are handling the case. There have been no confirmed sightings or significant leads since the library footage. If anyone saw Derek, his mother, or Nicole Durkin around October 27, 2023, contact investigators with any information.