The identity of a man who died in Newark in summer 2011 remains a mystery for New Jersey State Police. They're reaching out to see if you can help.

(New Jersey State Police)

Authorities say he was found unresponsive in front of a dwelling at 55 Webster Avenue on July 3, 2011. He died a short time later at University Medical Center in the city. Police say the cause of death was ruled non-suspicious.

He's described as between 40 and 50 years of age, 5'8" in height, 187 pounds, with black hair, brown eyes and no distinguishing scars, marks or tattoos. He wore the jewelry shown in the photos accompanying this article.

(New Jersey State Police)

The New Jersey State Police Missing Persons Unit can be reached at 1-800-709-7090.  Also, Detective B. Kearns is working the case at 609-882-2000, extension 2893.

(New Jersey State Police)