NEW YORK (CBSNewYork) — A convicted serial killer from Staten Island has been sentenced to 75 years to life in prison for the shooting deaths of three Brooklyn shopkeepers in 2012.

Salesman Salvatore Perrone, known as “Son of Sal,” who was convicted last month of second-degree murder, was sentenced Friday in Brooklyn.

“May this animal rot and suffer in jail for the rest of his life,” Jacqueline Kadare, sister of victim Isaac Kadare said, CBS2’s Steve Langford reported.

“It’s hard to think of anyone who deserves to spend the rest of his life in prison more than this cold-blooded and unrepentant serial killer,” Brooklyn District Attorney Ken Thompson said.

The first store owner to be killed was Mohamed Gebeli. The 65-year-old was found dead in his Bay Ridge clothing store Valentino Fashion at 7718 5th Ave., on July 6, 2012.

On Aug. 2, shopkeeper Kadare, 59, was found gunned down at his store, Amazing 99 Cents Deal shop at 1877 86th St.

The last homicide happened Nov. 16 at the She She Boutique at 836 Flatbush Ave., where store owner Rahmatollah Vahidipour, 78, was found fatally shot, police said.

All three victims were of Middle Eastern descent and all shop owners who were working alone in their stores when they were killed.

“My sincerest condolences to the families of the victims,” Peronne said to the families in court.

It went downhill from there, Peronne not only denied he killed the three men, but reading from a manifesto, he claimed in detail how he didn’t get a fair trial. The 67-year-old claims he was framed by a business associate.

“Absolutely no one appeared in this courtroom for my defense at the trial,” Peronne said.

“Everyone knows what I’m going to give you because that’s what you deserve, the maximum sentence the law allows, 25 years to life for each of the murder counts to run consecutively so that the total sentence is 75 years to life,” Brooklyn Supreme Court Judge Alan Marrus said.

The judge concluded by telling Peronne that he is a lucky man that New York state doesn’t have the death penalty, because he’d be a prime candidate.

Perrone was arrested after her was seen on surveillance video walking away from the last murder scene, carrying a duffel bag. Detectives said they found a sawed-off rifle used in all three attacks in a duffel bag in a closet at the home of Perrone’s girlfriend. They also found .22-caliber ammunition, black gloves, women’s clothing, a bloody knife and a bottle of bleach, police said.

Perrone’s fingerprint was lifted from the murder weapon.

Then Police Commissioner Ray Kelly said at the time that it was “reasonable to assume” Perrone would have killed again.

“A mountain of evidence connected this serial killer to these murders, which took the lives of three decent, honest and hard-working business owners who all left behind devastated families,” Thompson said following Perrone’s conviction in February. “Thankfully, this ruthless and cold-blooded killer will now spend the rest of his life locked behind bars and Brooklyn will be much safer because of that.”