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SHEEPSHEAD BAY, Brooklyn — Paramedics found a couple’s decomposing bodies inside a Brooklyn housing complex apartment Sunday night, as detectives question the female victim’s daughter in connection with their killing.

A police van at a Sheepshead Bay home where two people were found dead Sunday. (Kristina Behr/PIX11 News)

Police made the grisly discovery shortly after 7 p.m. inside a fifth-floor apartment at 2364 Batchelder St., when they responded to a call of a wellness check, according to the NYPD.

Upon arrival, officers found a 39-year-old woman with multiple gunshot wounds and a 40-year-old man with gunshot and stab wounds about body, police said.

EMS pronounced them dead at the scene. Police sources said the bodies had been there for a period of time and were decomposing.

Authorities believe the woman’s 15-year-old daughter– who is in police custody –carried out the murders, police sources said.  It is unclear if she was the only person involved in the killings.

The investigation continues.