The troubled 46-year-old man accused of stabbinghis elderly parents to death in Brooklyn has been charged with two counts of murder in the shocking slayings, police said Monday.

Meyer Sperber was charged late Sunday and also faces two counts of criminal possession of a weapon in the fatal Saturday stabbings of his dad, Jacob, and mom, Rachel, both 75, inside the family’s apartment on 45th Street near 12th Avenue in Borough Park, authorities said.

The elderly couple, discovered with their bodies covered in stab wounds, were taken to Maimonides Medical Center and later pronounced dead, cops said.

Their son reportedly barricaded himself in the apartment after the slaughter.

Once removed from the home, the bald, bearded and bespectacled man — seen with red scratches on his head — was strapped into a stretcher and loaded into an ambulance as a crowd watched.

He ignored The Post’s questions as EMS took him away.

Locals have described Meyer as “weird,” “awkward” and having “issues,” as well as “sometimes depressed, sometimes high.”

“They were good, they raised him,” one neighbor told The Post on Sunday of Jacob and Rachel.

“They provided. He was mentally ill,” the man added. “They did everything they could for him, and this is how he repaid them. It is disgusting. It is a terrible thing.”

Meanwhile, the elderly victims were said to have been “very nice” and “quiet” and beloved in the community.

An exclusive photo obtained by The Post shows the older couple huddling next to each other on a city subway train.

Jacob Sperber was “a special person” who would invite hungry locals into the family home and provide them with food and comfort, local resident Shlomo Antin told The Post on Saturday.

“He was from a different generation,” Antin said. “There were so many people who knew him.”

On Sunday, a group of Hasidic men stood guard over the scene of the slaughter, intercepting reporters and calling for privacy for the family and community.