Slay firebug staged a fake assault

Days before arson

The man who torched a Queens home on Wednesday — killing himself and two others — was busted days earlier for staging a home-invasion sex attack he hoped would get his ex-boyfriend arrested, sources say.

David Abreu Nuñez called police at about 7:15 p.m. last Saturday, claiming he was attacked at his home in The Bronx.

Nuñez, 23, told cops he was inside the Fordham Heights apartment when he heard a knock.

When he opened the door, he claimed he saw two older women — but was then forced inside by four men wearing masks and demanding money, law-enforcement sources said.

He claimed the attackers said his ex-boyfriend’s name before shoving him and causing him to lose consciousness, the sources said.

Nuñez stated he was then zip-tied and sexually assaulted, but when police and medics showed up, he had no visible signs of injuries, the sources added.

He was captured on building surveillance footage being taken out of the apartment on a gurney before he was taken to St. Barnabas Medical Center for evaluation.

He later admitted to police he staged the crime, and had made the bogus claims in hopes his ex-boyfriend would be arrested, law-enforcement sources said. Instead, Nuñez was charged with filing a false report.

The next day, his roommate booted him from the apartment because of the stunt, she told The Post.

“I told him he couldn’t be in my house,” said the woman, who spoke on condition of anonymity.

On Wednesday, while Nuñez was staying in East Elmhurst with Raul Moreno and relatives who were visiting from the Dominican Republic, Nuñez became irate after the family asked him to leave, sources said.

He then doused the kitchen with gasoline and set it on fire, killing 6-yearold Emma Dominguez and her 76-year-old grandfather, Claudio Rodriguez.

Two others — Emma’s 10month-old brother, Liam, and her mother, Elizabeth Rodriguez, 35 — were critically injured, and suffered burns over more than 70 percent of their bodies, relatives and authorities said.