“Son of Sal,” the Brooklyn serial killer whose three victims included two Jewish men, was sentenced to the maximum prison term of 75 years to life.Salvatore Perrone, 67, was sentenced Friday on three counts of second-degree murder in the 2012 shooting deaths of three store owners in the New York borough. The two Jewish shopkeepers were Mohamed Gebeli, 65, and Rahmatollah Vahidipour, 78. The third victim was a 59-year-old Muslim, Isaac Kadare.Perrone was convicted last month; he maintains he was framed.Brooklyn District Attorney Ken Thompson in a statement Friday called Perrone a “cold-blooded and unrepentant serial killer.”“He murdered three innocent, honest and hard-working business owners and then spent years acting up in court to delay the fate he received today,” Thompson said. ” I hope his life sentence will bring some comfort to the victims’ families who have suffered so much loss and grief.”Perrone was caught after the final murder when someone recognized his likeness on security camera footage. Police then found a rifle he owned, with his fingerprint, that matched the bullets fired in the murders. He later made statements implicating himself.Perrone, who sold clothing, covered each of his victims’ heads with cardboard or clothing.