BROOKLYN — Police are scouring the BMW that belonged to Julio Acevedo, the suspected driver in the fatal Williamsburg crash that killed a young Hasidic couple and their newborn boy, for traces of blood or saliva that could prove Acevedo was driving drunk, sources said. 
 
 Acevedo — who was hauled back to Brooklyn Thursday afternoon to face charges in the hit-and-run, a day after surrendering to police in Pennsylvania — was charged with criminally negligent homicide, leaving the scene of an accident, assault, reckless driving and speeding, prosecutors said. 
 
 At his arraignment in Brooklyn Criminal Court late Thursday evening, Judge Stephen Antignani ordered Acevedo held without bail and suspended his driver's license. 
 
 He faces a minimum sentence of 15 years to life and a maximum sentence of 25 years to life if convicted, prosecutors said. 
 
 Even as Acevedo was arraigned, the NYPD and the Brooklyn District Attorney's office continued to hunt for evidence to show that Acevedo was drunk when he allegedly slammed his BMW into a livery cab carrying pregnant Raizy Glauber and her husband Nachman Glauber on Kent Avenue near Wilson Street early Sunday morning, sources said. 
 
 Acevedo, 44, a convicted killer who had been arrested for drunk driving two weeks before the fatal crash, has said he was fleeing gunshots when he hit the Glaubers' cab, an account Police Commissioner Ray Kelly has questioned. 
 
 Acevedo has admitted to speeding at 60 miles per hour at the time of the crash, and police were also looking for additional evidence of recklessness, like if Acevedo ran a red light or crossed the double yellow lines, sources said. 
 
 Just before the crash, witnesses saw Acevedo swerve around a fire truck, swerve around another vehicle and then accelerate and hit the livery cab, according to the criminal complaint. 
 
 If prosecutors could prove Acevedo was drunk, that could lead to even more severe charges against him, sources said. 
 
 Police initially also charged Acevedo with vehicular manslaughter, but the prosecutors did not bring that charge against him in court Thursday night. 
 
 Also Thursday night, Judge Antignani issued an order of protection against Acevedo for the driver of the livery cab. 
 
 Acevedo did not speak during the court appearance but nodded at his family members as he was led into the courtroom. 
 
 "He's obviously broken-hearted about what happened," said Kathleen Julian, Acevedo's defense attorney. "He feels terribly for the family." 
 
 Still, she added, "I think the facts in this case will ultimately show that what happened was a horrible accident." 
 
 Brooklyn's District Attorney Charles Hynes said earlier Thursday that Acevedo, who was arrested in Bethlehem, Pa., would face the "most serious crime available" based on the evidence prosecutors had. 
 
 “When we arraign the defendant we will announce that we have charged him with the most serious crime available based of the facts, pending a further review of all forensics including DNA by a Kings County Grand Jury," Hynes said in a statement. 
 
 But Isaac Abraham, a Williamsburg community leader and neighbor of Raizy Glauber's parents, called the charges against Acevedo "a Coors Light." 
 
 "He got very light charges," Abraham said. "I don't know if this is the best the prosecutor could do." 
 
 The Glaubers, both 21, were en route to the hospital with labor pains when the crash occurred. They were taken to area hospitals, where they died. Their son was delivered prematurely and clung to life for a day before dying Monday morning. 
 
 Acevedo arrived at the Prospect Heights' 78th Precinct stationhouse about 1:55 p.m. Thursday, clad in the blue hoodie he was arrested in, and slowly walked into the precinct, escorted by an NYPD officer. 
 
 Acevedo's arrival in New York brought an end to a four-day manhunt in which Acevedo promised to turn himself in to police and Commissioner Kelly questioned whether he was playing "games" with law enforcement. 
 
 Acevedo, who has prior convictions for manslaughter and drunk driving, eluded capture for four days until he turned himself in to police in the parking lot of a Hill Minit Market in Bethlehem, Pa. about 5:10 p.m. Wednesday. 
 
 He waived extradition at a hearing in Pennsylvania the next morning and New York police brought him to the Brooklyn precinct, where the NYPD's warrants squad is based, for processing. 
 
 The young couple's death rattled the close-knit Williamsburg Hasidic community. Acevedo's capture brought some relief, but leaders said they hoped he'll face severe charges. 
 
 "We hope he will get the justice he deserves," Gary Schlesinger, a relative of the Glaubers and a community leader in South Williamsburg, said Wednesday. 
 
 "Hopefully this is going to put some closure to the tragedy," Schlesinger added. "The pain is still there, but it puts some closure to it." 
 
 Acevedo will next appear in court March 13. 

 Hit-and-run suspect Julio Acevedo waives extradition and returns to Brooklyn to face charges in deaths of Hasidic couple Suspect tells judge he is unemployed and only got as far as 11th grade. Williamsburg leader calls for murder counts. 
 
 Nachman and Raizy Glauber, pictired here at their wedding at the Pardes Faiga Hall, in Williamsburg on Jan. 17, 2012. 
 
 The lone suspect in a lethal weekend hit-and-run that killed a Brooklyn family returned to the city Thursday to face charges in the wreck. 
 
 Julio Acevedo was escorted home by federal marshals from an Allentown, Pa., courtroom to the 78th Precinct stationhouse in Brooklyn after agreeing to his extradition during a morning court session. 
 
 Acevedo — in the same blue sweatshirt that he wore when surrendering Wednesday — kept the hood pulled over his head and said nothing upon arrival at the Brooklyn police station. 
 
 Timothy E. Wynkoop/AP 
 
 Brooklyn District Attorney Charles Hynes said his office would charge the 44-year-old ex-con with the highest counts possible in the crash that killed a young Brooklyn Hasidic couple and their newborn son. 
 
 “When we arraign the defendant, we will announce that we have charged him with the most serious crime available based on the facts and a pending a further review of the evidence,” Hynes said. 
 
 RELATED: JULIO ACEVEDO'S PAROLE PROMISE NOT KEPT 
 
 Chris Post/Chris Post 
 
 His statement mentioned no specific crimes, although leaders in the victims’ Williamsburg community are calling for murder charges. 
 
 Acevedo waived extradition Thursday morning at the Pennsylvania hearing. He appeared tired and drawn as he arrived wearing an orange jailhouse jumpsuit, shackles and sandals. 
 
 “He wishes to go back as quickly as possible to New York to deal with this issue,” said Lehigh County District Attorney Steven Luska. 
 
 Bill Denver For Daily News 
 
 The tattooed suspect barely spoke at the court session held just 17 hours after he ended a four-day manhunt by silently surrendering to cops. 
 
 Acevedo told the judge he was unemployed, had an 11th-grade education and was living with his mom in Brooklyn. 
 
 RELATED: BROOKLYN BABY DIES DAY AFTER PARENTS WERE KILLED IN HIT-AND-RUN 
 
 Ken Murray/NEW YORK DAILY NEWS 
 
 Judge Kelly Banach then signed the waiver sending Acevedo back to Brooklyn. 
 
 Acevedo ended his flight from the law by turning himself in Wednesday evening in the parking lot of a Turkey Hill mini-mart just off Interstate 78 in Bethlehem, Pa. 
 
 He was quickly cuffed and held overnight at the Lehigh Valley Jail. 
 
 AP Photo 
 
 It remained unclear why Acevedo bolted for eastern Pennsylvania. “All roads lead to Allentown,” joked Luska. 
 
 Acevedo was arrested on a charge of leaving the scene of an accident — but community leaders in Williamsburg are demanding murder charges in the death of Hasidic couple, Nachman and Raizel Glauber, both 21. 
 
 RELATED: JULIO ACEVEDO SURRENDERS TO COPS 
 
 The couple’s premature son was delivered after the mother’s death, only to die a day later — another crushing blow to the victims’ families. 
 
 “He should rot in hell,” said Williamsburg Hasidic community leader Isaac Abraham. “Rot in jail before you rot in hell.” 
 
 Acevedo went on the run immediately after a speeding BMW plowed into the side of a livery cab taking the Glaubers to a Brooklyn hospital at 12:30 a.m. Sunday. 
 
 He was quickly identified as the driver, with cops pursuing leads in several states. Acevedo told the Daily News Tuesday that he intended to surrender — but then took more than 24 hours to give up. 
 
 Acevedo has a rap sheet dating back to 1986, including a manslaughter conviction for gunning down his best friend in 1987 and a drunken-driving bust just two weeks before the fatal crash. 
 
 esandoval@nydailynews.com
– The man accused of killing a young couple and their infant boy in a hit and run is back in New York to face charges after opting not to contest his extradition from Pennsylvania, reports the Daily News. But what those charges will be remain uncertain. DNA Info reports that police are poring over the BMW he was driving to try to prove he had been drinking. If they're successful, prosecutors could charge him with aggravated vehicular homicide, which carries a maximum 25-year sentence. Short of that, they could aim for criminally negligent manslaughter and a sentence of up to 15 years. As of now, the 44-year-old faces only a charge of leaving the scene of an accident, which carries a maximum of seven years. Acevedo had been charged with drunk driving just two weeks before the crash that killed Raizy and Nachman Glauber, both 21. Their son was delivered after the crash but died the next day.