It will be the first full day of deliberations beginning at 9:30 a.m. Attorneys completed their closing arguments Thursday and the judge gave the jury its instructions.
Ryan Hare's defense claims 18-year-old Silliman's 2008 death was an act of assisted suicide and not murder, but the prosecution says that's "absurd."
"Matt trusted his friends," prosecutor Jason Waller told the jury. "Above all us he trusted his friends. He trusted Ryan Hare. He trusted Allegra Dahlquist. He trusted Aadil Kahn. And he trusted Drew Shaw. And he ended up murdered."
Police have implicated three other teens in the murder: Aadil Shaaid Kahn, 18, Allegra Rose Dahlquist, 19, and Drew Logan Shaw, 18.
The prosecution also hammered the defense's theory that Hare only helped Silliman kill himself.
"If this is assisted suicide, why did they pre-dig a grave?" Waller asked.
Hare is accused of being the mastermind behind the plot that ended with Silliman's death. Prosecutors say he was angry about a relationship between Silliman and Dahlquist - who was his girlfriend.
But Hare's attorney says Dahlquist and Khan, not Hare, had motive to kill the Apex teen.
"Allegra did not need much of a push to join in on Aadil Kahn's plan," said Robert Padovano, Hare's attorney.
The defense says it was Dahlquist who put the bag and zip tie over Silliman's head and later changed her story to say Hare helped her in order to save herself.
The jury must decide if Hare is guilty of first-degree murder. If convicted, the teen could spend life in prison.