The Times reported Borger was charged in June with contempt for violating a restraining order his wife had against him, and that Brooks was Kerri Borger's boyfriend.
Authorities have so far not provided a motive for the murder, but said Brooks and Borger were acquaintances.
The tree-lined neighborhood where Brooks's body was found, roughly a mile from the Moorestown border, was quiet Monday morning.
A neighbor who lives a few doors down said he didn't know Brooks at all, and mentioned that the 44-year-old had just recently moved into the house down the street.
The neighbor, who identified himself as Karl but declined to give his last name, said he went to bed early Saturday and didn't hear anything overnight. He only found out what happened after waking up Sunday morning.
"This is a very nice neighborhood," he said. "We never have any problems."
Borger's murder charge will now be presented to a grand jury for indictment.
Information provided by the Burlington County Prosecutor’s Office. An arrest does not indicate a conviction.