Hunter Biden spent the first day of his gun trial taking notes, reading documents placed in front of him by his attorneys, and often turning to catch a glimpse of the friends and family who came to court to support him.

At one point, he nodded along as a prospective juror spoke about her friend's overdose after addiction.

Jill Biden was seated behind Hunter Biden all day, and she watched attentively as some jurors told the court that they had such a skewed view of her family that they could not be impartial. The first lady did not appear to react in those moments, but at times her daughter Ashley Biden placed her hand on the first lady's back in support.

Hunter Biden's family members also appeared to be actively involved with his defense strategy -- at one point standing up and huddling with Hunter Biden's attorneys Abbe Lowell and David Kolansky after a sidebar.

When court was dismissed, Jill Biden gave Hunter Biden a hug and a kiss before he walked out hand-in-hand with his wife.

Hunter Biden and his stepmother, first lady Jill Biden, departed court at the conclusion of the day's jury selection proceedings.

With opening statements set for Tuesday, prosecutors said their first witness would be FBI Special Agent Erika Jensen, who will introduce into evidence several of Hunter Biden's text messages, as well as excerpts from his 2021 memoir, "Beautiful Things," and other evidence.

The parties had carved out three days to select a jury, which means the proceedings are currently running ahead of schedule.

Judge Maryellen Noreika told jurors they would likely need to be available for the trial through June 14, with the possibility of deliberations stretching into the week of June 17.

A jury of six men and six women is scheduled to hear opening statements Tuesday in Hunter Biden's federal gun trial.

An additional four women were chosen as the alternate jurors.

The jurors include a Secret Service retiree, a man whose father was killed by a gun, and a number of jurors whose family and friends have suffered from addiction -- a central theme in the case against Hunter Biden.

Juror No. 1 is a woman who recently heard about Hunter Biden's case on the evening news. Said said her sister is also an addict, but is "currently clean."

Juror No. 2 is a woman who worked for the Secret Service for nearly 25 years and is now retired. Her husband was a uniformed officer in Washington, D.C.

Juror No. 3 is woman who gets her news from YouTube. When asked what she has heard about the case, she said that it involves guns and drugs.

Juror No. 4 is a woman who said she feels people who smoke weed "should not be allowed" to own a gun, but said she could set that aside.

Juror No. 5 is a currently unemployed man who previously received a DUI for which he pleaded guilty.

Juror No. 6 is a man who said he previously knew about the case. He currently owns three pistols and said, "I believe the Second Amendment is very important."

Juror No. 7 is a man whose father owned a firearm. He said he knows "some" gun laws.

Juror No. 8 is a man whose father was killed by a gun in 2004. He has a brother who was arrested for drug possession and was sentenced to prison.

Juror No. 9 is a woman whose home was burglarized years ago. She purchased a gun and has had it for over 20 years.

Juror No. 10 is a man whose brother and brother-in-law both suffered from alcoholism and are now both deceased. His niece and nephew both own guns.

Juror No. 11 is a woman whose family hunts and has hunting rifles. She said her "childhood best friend" passed away from a drug overdose.

Juror No. 12 is a man whose older brother is an addict who has been to rehab multiple times for PCP and heroin. He said the brother had a gun but he was not sure when.

The jury of 12 jurors and 4 alternates has been seated in Hunter Biden's federal gun trial.

The panel was picked from 250 prospective jurors who arrived at the courthouse this morning for the voir dire process.

In dramatic testimony, Hunter Biden's former romantic partner Hallie Biden described how, on the morning of Oct. 23, 2018, she went to go "clean out" Hunter Biden's car and found a gun.

"What did you find, in addition to trash and clothes?" prosecutor Leo Wise asked her.

"Remnants of crack cocaine and some paraphernalia," Hallie recounted. "Oh and the gun, obviously."

Hallie Biden said she found the firearm in "the arm console" of the car, which she said was not locked because "the lock had been broken." She said it was the first time she had ever seen a gun. She also found ammunition.

"I panicked, I wanted to get rid of them," she told the jury.

Asked why she panicked, Hallie Biden said she "didn't want him to hurt himself." She said she also worried about her kids finding the gun, saying she considered "hiding" it somewhere but was worried they would find it.

She said those frantic moments led to her throwing the gun in the trash. She told the jury she found a pouch to put it in -- which authorities say later tested positive for having cocaine on it -- and put the gun inside. The jurors were then shown the brown pouch she used.

"I was afraid to kind of touch it, I didn't know if it was loaded," Hallie Biden said, telling jurors she then put the pouch into another bag.

"I took it to the grocery store up the road and I threw it away," she testified.

At this point, jurors were shown surveillance video from the grocery store showing Hallie Biden throwing the gun into the trash.

In the video, her car is seen pulling into the parking lot; she then gets out of the driver's seated, opens the back door to get out the gun, then walks over to the store and places the bag in a garbage receptacle.

"Is that you Mrs. Biden?" prosecutor Leo Wise asked about her image on the video. "Yes," she replied.

Hunter Biden, sitting at the defense table, appeared to be locked on Hallie Biden the entire time, his head resting in his hand. He periodically covered his mouth.