With horrified family members crying out in anguish, a Brooklyn man and his adult son died together of a double opioid overdose while celebrating a family birthday party Sunday, police said. 
 
 Joseph Andrade, 44, and his 22-year-old son, Carlos, lost their lives soon after excusing themselves from the festivities by telling people they were going for a smoke. 
 
 For some reason, the younger man, who was not known to use drugs, joined his father, a reputed addict, in taking some powerful opiates — apparently snorting a mix of heroin and fentanyl, police sources said. 
 
 Carlos — his face turning purple as he asphyxiated — was discovered by his girlfriend, Jasmin Santos, just inside the foyer of his father’s building just after 3 a.m. 
 
 “Jasmin found Carlos dying,” a cousin, Sonia Santos, told The Post. “She screamed and tried to help him. She said he was turning blue.” 
 
 Joseph was found feet away, outside the building on 27th Street near Fourth Avenue in Greenwood, according to cops. 
 
 The distraught women called 911 and responding officers administered Narcan, a drug that reverses the effects of an overdose. But it was too late, and both men died at Lutheran Medical, authorities said. 
 
 Carlos had driven up from Maryland for the birthday bash with Jasmin and their children, ages 1 and 4, a relative said. 
 
 “He was very close with his oldest son,” Santos said of Carlos. “I don’t know what they are going to do without him.” 
 
 Acquaintances said Joseph, who worked on and off as a mechanic, may have struggled with addiction. 
 
 “The father had a problem,” said a neighbor who asked that their name be withheld. “People knew. I was surprised Carlos was involved. He was a good son.” 
 
 “That building was always fine until recently,” another resident lamented. “We’ve never had anything like this before, but lately there’s been a lot of men, drinking, getting drunk outside, late into the night.” 
 
 The father and son’s deaths are under investigation and the cause will be determined by the medical examiner, officials said. A projected total of 1,300 people are believed to have succumbed to drugs in 2016, officials have said. 
 
 Additional reporting by Emily Saul ||||| The estranged husband of the Queens mom suspected of savagely beating their twin toddlers — one fatally — flung himself to his death from the top of a Midtown hotel, where his twisted body was discovered on Saturday, police sources told The Post. 
 
 Mohammad Torabi, 31, was found at 1:20 p.m., sprawled atop a third-floor air-conditioning unit at the Renaissance New York Hotel on East 57th Street. 
 
 Police believe he plunged from the roof of the 17-story hotel sometime Friday and had been dead for a day before he was spotted. 
 
 The unemployed Manhattan man left behind no note, but police say they are investigating the death as a suicide. 
 
 News of Torabi’s death came as his wife, Tina, 30, sat in Rikers for the near-fatal beating of their 13-month-old son, Kian — and as coroners prepared an autopsy report on his twin sister, Elaina, who was found dying in the family’s Flushing home on Wednesday night. 
 
 Both twins suffered “severe body trauma,” police have said. 
 
 By Saturday night, the mom remained charged only with “depraved indifference” assault, alleging that her reckless conduct created a grave risk of Kian’s death. 
 
 The charge does not specify if she allegedly beat him; she is also not charged in the girl’s death. 
 
 She has remained mum to cops. 
 
 Meanwhile, police sources revealed investigators had been looking to question the father, who had a history of drug abuse and domestic violence against the mother. 
 
 He was convicted in Texas of misdemeanor and felony assaults against family members in 2015, records show. 
 
 “Maybe he’s the one who did all that stuff to his daughter,” one investigative source speculated. “He must have thought, ‘I’m going to jail now.’” 
 
 The husband’s death-plunge ended a troubled marriage marred by drugs and violence. 
 
 Mohammad and Tina, a pharmacy technician, married in Houston in 2012 and lived in Texas before moving to New York to be near his relatives. Sources familiar with the case have said Mohammad at some point turned his wife on to drugs. 
 
 The twins were on the city’s radar since they were born last year with opioids in their systems. 
 
 Tina won an order of protection against Mohammed last January. It has been repeatedly renewed and ran through Oct. 10, one city source has said. 
 
 “We knew the dad was no good and didn’t want him anywhere near the wife and kids,” the source said. 
 
 Still, the father was occasionally seen with his wife and kids, said workers at a convenience store and a CVS near the basement apartment where the family lived since March. Raising five children alone took a toll on Tina, neighbors said. In addition to the year-old twins, there were three older children, sisters Mila, 2, Nadia, 4, and Ariana, 5. 
 
 “I’ve seen her taking the kids to school,” to drop Ariana off at nearby PS 107, said one neighbor. 
 
 “She would have all five of them. The twins were in her arms,” the neighbor said. “She never looked like something was wrong with her, she [just] looked overwhelmed.” 
 
 Workers at the CVS remembered the kids as sweet, but “dirty” and “running amok.” 
 
 “She would always smell like urine,” a cashier who asked not to be named said of 2-year-old Mila. 
 
 “They would, like, play hide and seek and stuff,” she said of the children. “I would say, ‘Your mom is coming,’ and she [the mother] would just stand there.” 
 
 The mom always looked tired. 
 
 “Most of the time she was so overwhelmed because there were so many kids,” the cashier said. 
 
 Still, even at the precinct station house after her daughter’s death, Tina “was well-dressed, well-spoken — you wouldn’t expect that from her,” one law-enforcement source told The Post. 
 
 “I cannot believe, I cannot believe what I saw, what I hear,” said Reza Razavi, an in-law of Mohammed and the owner of the home where the mother and five children had lived in the 800-square-foot basement since March. 
 
 see also Siblings also suffered in home where girl was fatally beaten The three other children in a Queens house of horrors... 
 
 “I wish it was all dreams,” he added. 
 
 Razavi, who lives in Nashville, happened to be visiting the house Wednesday. 
 
 That night, “I heard Tina yelling that the kid is not breathing. The first thing I did, I called 911,” he said. 
 
 “I didn’t go to look,” he added, “because every second counts.” 
 
 Of Mohammed’s apparent suicide, he said, “If he did this, either he has to go to jail or he better kill himself. Because how could he live with torturing two small kids?” 
 
 Kian remained Saturday in critical but stable condition in the intensive care unit at Cohen Children’s Medical Center. 
 
 He suffered multiple broken ribs, bruises to his groin, a broken hip, a lacerated liver and severe swelling to his abdomen. 
 
 More lacerations were found all over his body. 
 
 The older children were inside the Torabi’s Ashby Avenue basement apartment when the 911 call was made on Wednesday night. 
 
 Arriving cops found both of the one-year-old twins near death. 
 
 Elaina was rushed unconscious to Flushing Hospital, but was quickly pronounced dead. She suffered bruising to the back of her head and genitals, a large wound on her abdomen and open lesions all over her body. 
 
 The three older sisters were unharmed, except for a small burn on Mila’s right ankle, sources said. 
 
 The three are now in the custody of the city’s Administration for Children’s Services. 
 
 ACS had visited the family’s home just two days before the mother’s 911 call, in follow up to a court ordered check, in part on whether the mother was completing substance-abuse treatment. 
 
 But the visit revealed “no red flags or physical signs of abuse,” an agency source has said.
– Tragedy struck a Brooklyn family over the weekend when a father and son died of drug overdoses at a birthday party. Police say Joseph Andrade, 44, and his son Carlos, 22, told family members they were stepping outside for a cigarette when in actuality they were going to snort a mix of heroin and fentanyl, an opioid 50 times stronger than morphine, the New York Post reports. Carlos, who had driven up to Brooklyn from Maryland, was discovered by his girlfriend, Jasmine Santos, as he asphyxiated in the foyer of his father's building around 3am. Joseph was found outside the building on 27th Street. Emergency responders administered Narcan, a medication that blocks the effects of opioids, to the two men and took them to NYU Langone Hospital, but they died within an hour of being found, the New York Daily News reports. Joseph Andrade is a reputed addict but several witnesses expressed surprise at his son's involvement. “I’m so surprised because I know Carlos, and I never know that he used drugs or anything like that," Jasmine Santos' uncle Yovanny said. New York City officials say 1300 people died from overdoses last year, 90 percent of which were caused by heroin or fentanyl.