The jury has heard Pairama met up with the defendants and two other teenagers in Auckland's CBD before crashing at the state house on 10 July.
Crown solicitor at Manukau, Natalie Walker, said it was unclear why but at some point the defendants turned on Pairama and took turns at beating her.
The 17-year-old was stripped naked, tied to a chair and burnt before being asked how she wanted to die, the court heard.
Dimetrius Pairama's body was found in a drum at an abandoned state house last July.
Much of what the Crown says happened in that house comes from a young teenager who was there and has been granted immunity from prosecution in exchange for giving truthful evidence.
Both sides of defence have questioned the credibility of the immunity witness, who told the jury she tried to save Pairama before falling asleep in another room of the house at the time of her death.
She said Winter was the ringleader of the group; evidence echoed by Constable Riki Naera who turned up at the house during the period of alleged abuse on an unrelated inquiry.
The police officer, who was looking for a former tenant, said Pairama opened the door looking teary before an older woman matching Winter's description joined her.
He felt the older female was "the boss" of the house but eventually left the house after Pairama refused his repeated offers of help, the court heard.
Ashley Winter's defence
Winter, represented by Matthew Goodwin and Annabel Cresswell, has denied any role in Pairama's death.
In a series of interviews with the police the 29-year-old changed her story three times.
She initially claimed she had nothing to do with the death and had to helplessly watch her "sister" get hanged by Te Amo; later admitting she helped beat and tie up the teenager.
Winter said she punched and slapped Pairama because she blamed her for a past assault and had heard the teenager was spreading rumours.
The Crown criticised her demeanor during the first interview; the jury having watched a police video repeatedly interrupted by the defendant dry retching and crying.
But her lawyer Cresswell asked the police why she wasn't offered mental health support; her client having mentioned she needed to see someone several times in the interview.
In his closing address on Friday, Goodwin said Winter was far from the orchestrator of Pairama's death but rather an outsider who barely knew others in the house.
He made a point of telling the jury his client was a trans woman and that this shouldn't count against her.
One of Kerry Te Amo's lawyers Shane Tait told the jury that Winter's identity was an important factor in the case.
"In a trial involving assaults and violence it's important we appreciate that she's not in there slapping and hitting like a dainty fish; she's in there with big fists and the strength of a male."
Te Amo also spoke to the police after Pairama's death but said his only role was to cut Pairama's body down and put it in a steel drum in the state house's backyard.
The jury has heard his DNA was found on one of several makeshift nooses in the house.
Tait told the jury this wasn't the "slam dunk" the Crown suggested it was and his client, while he admitted kidnapping Pairama, was not responsible for her murder.
This morning Justice Brewer told the jury suicide was not a factor they had to consider in the case; telling them they could set it aside as there was no legal basis for it.
"Your task is to decide what, if any part, each defendant had in Pairama's death and in doing that to decide whether either or both have criminal responsibility as a result."
The jury of five women and seven men retired shortly after midday.
