SLIPPERY ROCK — A Slippery Rock University student Wednesday calmly explained her role in a home invasion last month that targeted a fellow student’s marijuana.

“We were just going to go over there and take his weed,” 18-year-old Nyasia J. Middleton testified, implicating herself and suspected accomplice Monir Hall Jr., at a preliminary hearing.

Only minutes earlier, with an immunity agreement protecting him from prosecution, the alleged victim described having been held at gunpoint and pistol whipped in his apartment.

District Judge Tim Shaffer following testimony ordered Hall, 22, of Pittsburgh held for trial on robbery and other charges.

Middleton of Pittsburgh opted not to have her own hearing on related charges, meaning her case is also headed to court.

State police arrested Hall, a former SRU student, and Middleton after Thomas A. Mansfield, 20, reported being robbed and assaulted at his University Village off-campus apartment Nov. 17.

Mansfield testified that he was home alone when he answered a knock at his door about 7:20 p.m. He was met by a man and woman, both dressed in black sweats with nylons stockings covering their faces.

He did not recognize them, but from how they spoke, he believed they were black. The woman walked in first. The man, who had a gun, followed.

“I initially thought it was a joke,” Mansfield said. “I thought my friends were playing a joke on me.”

He recounted, however, that his first impression changed in a moment — when the man held a revolver to his head.

“He was making threats,” Middleton said of the man. “He said he’d blow my head off.”

The intruders made their demand known.

“They said, ‘Where’s my marijuana?’” Mansfield testified, prompting Hall’s attorney, James Walsh of Pittsburgh, to object.

“He just confessed to a crime,” Walsh told Shaffer, referring to the alleged victim. “He needs to speak to an attorney.”

At that point, prosecutor Mark Lope, a Butler County assistant district attorney, advised Mansfield, who is not charged in the case, of his Fifth Amendment right against self-incrimination.

Appearing confused, Mansfield first seemed willing to waive his right. He then seemed ready to invoke.

Lope settled the matter by granting the witness immunity. Mansfield resumed his testimony.

“I handed (the defendants) a bag of marijuana,” he said, admitting he had recently bought a 7-gram bag.

During the ordeal, the man hit him in the back of right ear with the gun. He said he later was treated for a concussion.

But before the suspects left, Mansfield said he made a parting remark.

“I told (Middleton), ‘I know who you are,’” he said.

He said he knows Middleton and recognized her voice. He said the two had previously smoked marijuana together at his apartment.

Walsh pounced on Mansfield’s testimony on cross-examination.

“Do you have a drug problem? he asked.

“No, sir,” Mansfield replied. He acknowledged he smokes marijuana up to three times as week but denied smoking any that night.

Walsh’s next line of questioning was just as direct.

“Do black people sound different from white people?” he asked?

Appearing nervous, Mansfield said, “In my opinion, I would say, yes, I can differentiate.” But he was unable to put into words how he could identify the color of a person’s skin by voice.

Mansfield, however, told Walsh he could tell Hall, who he had never met before that night, was black not just by sound.

He said the back panty hose the suspect wore as a disguise was “a different shade of black than his skin tone.”

Middleton’s testimony, meanwhile, began with Lope inquiring about her decision to cooperate with the prosecution.

With her attorney, Gary Gerson of Pittsburgh, listening intently and taking notes on a legal pad in back of the courtroom, she acknowledged she hoped prosecutors would consider her cooperation when taking up her criminal case.

She recalled how Hall, who she met in 2012 when he attended SRU, came to her apartment at University Village on Nov. 17.

Middleton said Hall came up with the idea to steal marijuana from Mansfield, who lives across the street from her.

She recounted, dispassionately, the crime.

“(Mansfield) opened the door. We searched the apartment. He pointed to the weed and we left.”

She told Lope that Hall held a gun pointed at Mansfield as she briefly went into a back room.

Marijuana was the only property taken from the apartment. Police in charging documents also accused the defendants of taking $140 and a watch.

On cross-examination, Middleton insisted she was given no promise of leniency in exchange for her testimony.

“Do you think your (testimony) will keep you out of jail?” Walsh asked.

“I don’t know,” she replied.

She told Walsh that Mansfield handed over his marijuana to her — not his client.

Following testimony, Walsh mocked the prosecution’s case, calling it “incredibly thin.”

He also ripped the prosecution’s witnesses, while asking Shaffer to dismiss the case.

“The only thing we have,” Walsh said, “is the testimony of somebody who claims he can tell someone’s race by their voice, and a snitch.”

Shaffer, however, held all charges for court

Hall is charged with robbery, aggravated assault, burglary, theft, receiving stolen property, terroristic threats, reckless endangerment and conspiracy.

Middleton is charged with conspiracy to commit the crimes of robbery, burglary, theft and receiving stolen property.

Hall remains in the Butler County Prison on $250,000 bail. Middleton is free on $25,000 unsecured bail.