Ethlin, who is recovering with bruises to her lip at Kings County Hospital, was inside the couple's Bedford-Stuyvesant brownstone at 3:30 p.m. Wednesday when two thugs sneaked in and hogtied the pair.
PIX11's sources say the couple may have been targeted since they were landloards.
They rummaged through the home and fled.
The couple's niece, Karlene Grose, said she was watching the news and saw her aunt and uncle's home on the screen and realized her uncle had been killed by the burglars. Waldiman was tied up by his arms and legs and his wife Ethlin was also bound and had a blanket put over her head. "Officers entered the apartment and found her husband tied up, lying on the floor and he was unresponsive", said Deputy Chief Michael Kemper. There wasn't initially any sign of forced entry, though police stressed that the investigation is still in its preliminary stages.
"To see my uncle go like this, someone has to be punished", Grose said. "I am suspicious because my stepmother would always lock the doors when anyone would leave the house".
"I thought it was a gunshot initially".
Witness Paul Peterson told NBC that he saw Ethlin run out of her apartment just after the apparent invasion. Police at the time said she didn't know her husband was dead.
Once the suspects left, Ethlin wiggled free from her restraints and called police.
The location of a deadly home invasion in Brooklyn, New York.
He said he tried to persuade his father and stepmother to move closer to him in Tamarac, FL.
Barry Henderson, a neighbor of Ethlin, told the Daily News that the panicked woman also came up to him after she escaped the robbers.
Brooklyn Borough President Eric Adams is offering a $1,000 reward for information leading to an arrest and indictment in the case. "Their tragedy is a tragedy for us all".