NEW YORK (CBSNewYork) – Police on Wednesday arrested the son of a woman who went missing two days ago.

Police believe Paula Chin may have been murdered in Manhattan and her body dumped in Morris Township, N.J.

Paula Chin (credit: NYPD)

Chin was last seen Thursday at her home in Tribeca, according to police.

Her body was discovered Tuesday at Bailey Hollow Road, according to the Morris County Prosecutor’s office.

Why would anyone want to hurt her and how did she die? Those are the questions that keep Robert Jones knows will keep him awake.

“It’s really a loss, really makes me feel bad,” Jones told CBS2’s Jessica Layton.

Jones says he has been a friend to Chin and her family for years, getting to know her sons while he was doing maintenance for the building next door to them on Vestry Street in TriBeCa. He can’t believe one of those sons, 22-year-old Jared Eng, was taken into police custody with two women in connection with her death. Eng, Caitlyn O’Rourke, 21, and Jennifer Lopez, 18, have been arrested and charged with concealing Chin’s body.

“It just hurts me to see this,” Jones said. “I  have no idea, but from what I could see they were a happy family. That’s what I see.”

Jones hadn’t seen Chin, described as friendly and fond of the family’s summer home in New Jersey, for a few days. Police believe after she was killed in her TriBeCa building, Eng, Lopez, and O’Rourke drove to and dumped her body with three knife wounds at that home in Morris Township.

People who live on Bailey Hollow Road just found out why police and prosecutors have been swarming their neighborhood.

“We got a bit nervous yesterday,” said Mark Abbott. “It was a very strange day here yesterday at about 6 a.m. All these emergency vehicles pulled in and they were here through the night.”

“What happened that made him do this? I really can’t see him doing this,” said Jones.

Nobody has been charged with killing Chin as yet.

The medical examiner will determine the cause of death.

All three suspects are expected to be arraigned on Thursday.