The mother of the slain man left in a garbage bag on a Queens street was also found dead early Thursday, sources said, as chilling video emerged of the suspect – a relative of the pair – dragging the male murder victim away from the home. 

The NYPD made the second grisly discovery around 2:45 a.m., inside 32-47 104th Street home in North Corona – less than a day after authorities found the man’s body stuffed into a garbage bag, according to law enforcement sources. 

The woman was discovered with stab wounds, a slit throat and multiple gunshot wounds, the sources said. 

The man’s body had been discovered just before 2 p.m. Wednesday after a passerby spotted blood leaking from a white bag covered by a blanket on the sidewalk.

The footage, obtained by The Post, shows the 40-year-old suspect dragging the body – inside the bag – out onto the sidewalk before walking off with a shopping cart, holding a bottle of bleach inside. 

“He had the stroller in one hand and was dragging the body with the other hand,” said a 19-year-old neighbor who viewed the video and only gave her first name, Michelle. “He didn’t run. He blended in. He walked off, like nothing happened.”

Seemingly unaware pedestrians pass on the sidewalk both before and after the suspect walks by, the clip shows. 

The male victim had a puncture wound to his neck, according to the NYPD. Sources say it appears he was also shot. 

Investigators believe the suspect – who has several prior sealed arrests – killed his cousin and aunt during a dispute, the sources said. The exact nature of the deadly clash is under investigation. 

Michelle recalled that police had knocked on her door asking to see surveillance tape because a dead body was dumped outside her house. 

She went outside with the cops to see what was there. By then, the officers had opened up the bag to expose the body, which was “fully naked,” she said. 

“Of course, I was shocked, of course,” she said. 

“It was wrapped in thick sheets, bloody thick sheets, and then a very hard bag,” she said. “The body was curling inwards…he was on his side curling up.  It was camouflaged with a black bag, but when they opened the bag they saw the thick white sheets, with like some blue patterns. The blood was dry. His puncture wounds, you could see on his legs and on his back. They were also dry. I assumed they weren’t fresh.”

Michelle said the first body might have gotten people’s attention because of the smell. 

“It was…very, very strong,” she said. “There were a lot of flies, a lot of flies.”

She also recalled a man “going back on forth screaming, ‘He killed my sister. He killed my sister. He buried her in the backyard,’” on Wednesday. 

“It really does connect,” she said. 

That same man was seen touching the body bag as workers from the city Medical Examiner’s Office removed the woman’s body from the home Thursday. He was emotional but would not speak.

Another local resident told The Post, through a translator, that he knew something wasn’t right when he saw blood in the garbage bag as he passed by on Wednesday. 

“I was going to the 99 Cents store,” Javier Membrero said. “When I was coming back, I saw blood in the garbage bag. I touched it with my [foot]. And I let somebody else know. When I touched it with my [foot], I was like, ‘That’s not garbage. That feels like a body.’ I called 911.”

The suspect was walking near the scene Wednesday night when police stopped him and found that he was toting a gun and knife, police sources said. He was taken into custody for questioning.

Police officials had not confirmed any arrests by Thursday afternoon. They also had not officially identified the victims.