Investigators say it was around 3:00 p.m. Sunday when a person who lives in a home on Woodland Avenue found the victim, John Kingsbury.
Kingsbury was rushed to the hospital where he was pronounced dead.
An autopsy completed on Monday morning showed the cause of death to be from two gunshots wounds, the prosecutor's office said. His death has been ruled a homicide.
The prosecutor's office says no arrests have been made. There was no immediate word on any suspects.
Kingsbury had been living at the home for several months with his son, Dennis. Witnesses told police Dennis Kingsbury was away for the afternoon with his family when the murder took place.
Neighbors told Action News that Dennis Kingsbury moved his house here from California on a flatbed truck a couple of years ago.
Lifelong residents of this rural area said this is the first murder in these parts since 1999 and they remained stunned by the developments.
"He's been a good neighbor, no problems, kind of a quiet guy but he has a lot of people coming and going because of the business he's in - he sets up cheerleader competitions all over the country so he has a lot of people working for him," said Howard Abbott.
"They're very good neighbors, never any complaints, there's not over-partying or anything, anything suspicious. This right now is breathtaking," said Dustin Hay.
Anyone with information is asked to call the Major Crimes Unit at (609)-909-7666 or the Mullica Township Police Department at (609)-561-7600.
