Jersey City police were called to a building on Wilkinson Avenue shortly after 1:30 p.m. and found 60-year-old Gregory Harvey unresponsive.
He had suffered apparent head injuries and was pronounced dead. The medical examiner's office will determine the cause and manner of death.
The victim's family says he was married and had grandchildren.
The prosecutor's homicide unit and Jersey City police are investigating. No arrests were immediately reported.
(The Associated Press contributed to this report.)
----------
* More New Jersey news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube