TENAFLY, N.J., May 17 (UPI) -- Three people found dead in a home in a quiet New Jersey suburb were homicide victims, investigators said Saturday.

The bodies were found Friday afternoon in Tenafly by a relative of one of the victims, The Star-Ledger of Newark reported. Police said the victims were an elderly woman, her grown son and an unrelated elderly man.

"We do not believe this was a random homicide," Bergen County Prosecutor John Molinelli said.

Molinelli said the victims appeared to have been dead for six or seven days. The bodies were on the house's second floor, one in an office and the other two in bedrooms.

The discovery shocked neighbors in a quiet suburb in eastern Bergen County.

"It's a quiet, lovely community. Things like this don't happen in Tenafly. Isn't that the joke? It can happen anywhere," Cathy McCauley told NY1 News.

Molinelli said all three victims are believed to have lived in the house.