(UPDATED) Testimony Wraps up in Swanson Trial

UPDATE (June 23, 3:10 p.m.) — The defense has rested its case and closing arguments are scheduled for this afternoon, the Pioneer Press reports.

UPDATE (June 22, 10:37 p.m.) — The Star Tribune reports that Swanson's mother, Kathleen, was called by the defense Wednesday to talk about how she tried everything to help her troubled son. The defense is going to attempt to prove that the teenager is legally insane and, thus, unfit to stand trial.

UPDATE ( June 22, 1:47 p.m.) — The prosecution is wrapping up its case this afternoon after having played a taped interview with Swanson that KARE-TV described as "chilling." On the tape, the teenager calmly described how he shot two convenience store clerks on Nov. 15, 2010.

The defense is expected to start laying out its case either later today or on Thursday. Swanson's mother is expected to be called as a defense witness.

June 22, 8:37 a.m. — Testimony began Tuesday in one of two trials for the St. Louis Park teenager accused of .

The Star Tribune reports that a friend of 18-year-old Michael Swanson testified about how he met with Swanson on Nov. 15—the day the then-17-year-old allegedly killed Sheila Myers, 61, and Vicky Bowman-Hall, 47, in separate robbery attempts.

That friend, Danny Cegla, said he met Swanson in a park, where they smoked cigarettes and where Swanson showed him the gun he had stolen from his grandfather's cabin, the newspaper reports.

"You'll see me on the news," Swanson said, according to Cegla.

The trial in Carroll County, Iowa, is expected to resume today. Swanson also will stand trial in Lyon County later this month. Swanson faces first-degree murder and first-degree robbery charges in both counties. He is being tried as an adult.