A Bay Shore snack deliveryman was sentenced Wednesday to life in prison without parole, plus 155 years, for killing a woman working as a prostitute during a robbery and trying to kill two police officers who responded to the scene.

Stoker Olukotun Williams, 27, had conceded at his trial last month that he shot Shalece Cunningham, 24, in the head while robbing her and her pimp at a Bohemia motel.

But the defendant, who represented himself, argued that he was not responsible for the crimes because an alternate personality, Malik Thompson, went on the Sept. 7, 2013, rampage.

He said Wednesday he hoped people could forgive him.

“I find you to be pathetic, and I’m not here to forgive you,” state Supreme Court Justice William Condon said as he imposed the sentences on Williams for first-degree murder, two counts of first-degree attempted murder, two counts of first-degree robbery and other crimes.

Condon, like the jury that heard the case, rejected the idea that Williams was not responsible because of some psychiatric problem. The judge said Williams acted deliberately and showed no remorse.

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Cunningham’s parents, Kenneth and Alvina Cunningham of Bay Shore, told Condon they have not been the same since their daughter was killed.

“I have no forgiveness in my heart for the man who took my daughter’s life,” Kenneth wrote in a statement read by his wife in the Riverhead courtroom.

The victim’s brother, Derek Green, wrote that Williams’ defense was a mockery of the justice system, and his habit of appearing in court in a wheelchair as the result of an accident in the Suffolk County jail was just a ploy to gain mercy.

“He showed my sister no mercy,” Green wrote.

“During the trial, some things ripped me apart like a chain saw,” said Alvina Cunningham, who noted that Williams had passed the entrance exam for the New York Police Department shortly before the murder. “Had it not been for my daughter’s death, this man could have been wearing the color blue and legally carried a gun. Who knows the damage he could have caused.”

She said that even though she talked with her daughter every day, she had no idea her daughter was working as a prostitute. She wished her daughter would have confided in her about that, she said.

“When my time on Earth here is done, I will look for my daughter in heaven,” she said, before sobbing for the rest of the proceeding.

Assistant District Attorney Robert Biancavilla said Williams showed he would “stop at nothing to get what he wants” and deserved the maximum possible sentences.

Williams, in a brief statement, said all the witnesses at his trial lied.

“I had no reason to kill this young girl,” he said. “I pray she didn’t suffer.”

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Afterward, Cunningham’s parents expressed relief that the ordeal was over.

“It’s a weight off our chests,” Kenneth Cunningham said.

“Finally, our bodies and our minds can rest, knowing that our daughter’s soul can rest,” Alvina Cunningham said. “She can rest, and so can I.”