The last positive ID came two years ago in March of 2015.
His name has been withheld at his family's request, the New York City medical examiner's office said.
However, 1,112 people - about 40 percent - who died on 9/11 still remain unidentified, according to the medical examiner's office.
Advances in DNA extraction and testing technology helped confirm the victim's identity, the medical examiner's office said.
A victim of the 9/11 terror attacks on the World Trade Center has been identified nearly 16 later, due to new advances in DNA technology.
Manhunt Underway After Officer Shot and Killed During Traffic Stop
Court records indicate McCarthy pleaded guilty in November 2013 in Missouri to a misdemeanor driving without a valid license. A manhunt is underway after a rookie police officer was shot and killed at a traffic stop in Clinton, Missouri, police said.
As DNA testing propelled, so has the multimillion-dollar push to interface more than 21,900 bits of stays to singular casualties.
The efforts haven't been simple. Most of the DNA profiles generated belong to previously identified victims.
Remains of 1,641 victims have been identified.
In some cases, scientists have re-examined the same bone fragment 10 or more times - hopeful that advancements in technology will provide answers. There were very few full bodies recovered following the fiery crash of the towers, and the impact of various environmental factors made the bits of remains hard to analyze.
In total, the 9/11 airline attacks killed almost 3,000 people at three different sites in NY, at the Pentagon, and an area where a plane crashed near Shanksville, Pennsylvania.