NEW YORK (CBSNewYork) — Police are investigating the suspicious death of a Brooklyn nurse and mother.

Noreen Mulzac, 70, was found dead in her bedroom Monday afternoon with her legs bound. Her death has been ruled a homicide, the medical examiner said the cause was strangulation.

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Police say her daughter’s boyfriend found her and called 911.

Mulzac had numerous electrical cords tied around her legs and ankles, and fabric wrapped around her neck, 1010 WINS’ Holli Haerr reported.

Mulzac shared the Canarsie home with her son, her daughter and her daughter’s boyfriend.

As CBS2’s Erin Logan reported, Mulzac was described as a good mother, and a friend.

“She was beautiful. Very nice. Very, very, very nice. I knew her very well,” neighbor Thelma Gomes said.

She and other neighbors can’t understand why Mulzac was found tied up on her bedroom floor.

“She was a nice, hard working lady. She took care of her kids,” neighbor Tamell Halloway said. “It’s just messed up… Sad that it had to happen.”

Halloway, a longtime neighbor, told CBS2 this isn’t the first crime at the Flatland’s Third Street home. He claims Mulzac was robbed years ago and police say her son, 28-year-old Jayvon Mulzac, was arrested in that case in September 2006.

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He was accused of climbing in a window and letting in two accomplices, Haerr reported.

“They took her car, credit cards and money as well,” Halloway said, which police confirmed with CBS2.

According to a criminal complaint, Mulzac was pistol whipped in that incident, and she and her daughter were also duct taped to chairs, Haerr reported.

“Their relationship is off and on, it’s really horrible. She calls the cops on him a lot, but he’s like a mental health patient,” Halloway said of the victim’s son.

Police said there was no sign of trauma or forced entry.

Neighbor Hazel Bartley, was concerned after seeing crime scene tape and detectives going in and out of the home.

“They told me she passed. I literally collapsed,” she said.

Police said Mulzac’s daughter’s boyfriend and one of Mulzac’s friends were home at the time she was found, but neither is a suspect.

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Police have not named any suspects in this case.