MicroStockHub/iStock(NEW YORK) — Human remains uncovered in a New York City backyard on Tuesday may date back to the 1970s, according to a source, who cited a tip to detectives. Police found the human skeletal remains in the back of a home in Queens at about 11:30 a.m. Tuesday, according to the New York Police Department. The remains have not been identified, police said. The medical examiner will determine the cause of death, according to police.Copyright © 2019, ABC Radio. All rights reserved.