He’s been sleeping like a baby.
Despite his history as a mom-strangling psych patient charged with savagely butchering two young children in a housing-project elevator, Daniel St. Hubert has been calm, sleepy and quiet since his arrest, law-enforcement sources told The Post.
“When we grabbed him, he didn’t say a thing,” one source said about arresting accused “Ripper” killer St. Hubert on a Queens street Wednesday.
“He couldn’t keep awake anymore, and he fell asleep,” another source said.
“He slept like a baby most of the time while he was in custody.”
Mikayla Capers, 7, was stabbed 16 times and was transferred Friday from the ICU at New York-Presbyterian Hospital.
Her playmate Prince Joshua “PJ” Avitto, 6, died soon after the bloody rampage.
More than 1,500 mourners attended the boy’s funeral Friday at St. Paul Community Baptist Church in East New York.
Police say St. Hubert stabbed the children just nine days after being released from a five-year prison stint for the near- fatal strangling of his own mother in Jamaica, Queens.
Once in custody, “he was actually very calm, which was disturbing, considering what he did.” one source said of St. Hubert.
“It was like he didn’t have a care in the world and didn’t give two s–ts about what he did,” the source said.
His parole officer, Roxanne Marie, was so alarmed by his potential for violence that she believed he needed to be institutionalized and ordered a strict program of curfews and counseling, The Post reported exclusively on Friday.
Also Friday, St. Hubert’s father said his son should beg the families of his victims for forgiveness.
“Ask them to forgive you,” pleaded Albert St. Hubert, 69, from his home in Fort Lauderdale, Fla.
Daniel St. Hubert is linked to Sunday’s butchery by his DNA, which was recovered from a knife dropped at the scene, by his fingerprints on the elevator and by three eyewitnesses. One saw St. Hubert walking into the Boulevard Houses near the two kids moments before the stabbings, according to the criminal complaint against him.
Three of the witnesses then saw him leaving the building — hurriedly and alone. At one point, the stumbling fiend fell to the ground, right where cops found the bloody steak knife shortly afterward.
“We questioned him on and off about the incidents, saying, ‘We know you did it,’ but he wouldn’t budge.” Instead, St. Hubert explained that “the devil” had somehow planted the airtight evidence against him.
He remains a suspect in the fatal May 30 stabbing of an 18-year-old woman in East New York, and the June 4 stabbing of a homeless man in a Chelsea subway.