Published: Nov 14, 2012 12:17 PM EST
Updated: Nov 14, 2012 4:49 PM EST

LEE COUNTY, Fla.- Trial is officially under way Wednesday afternoon in the case of a man, charged with killing his wife inside a Cape Coral day care.

Weeks of jury selection ended late Wednesday morning, and now both sides are making their first comments, almost five years after Robert Dunn's arrest.  

The jury was seated and sworn in shortly before 10:00 a.m. The 12 jurors and 3 alternates were whittled down from a pool of more than 400. Altogether, there are 10 women and 5 men.

The state and defense already presented their opening statements and the state called its first witness all before noon.

Mia Weiskopf was the first witness to take the stand. She was a teacher at Bobbie Noonan's daycare, the location where the shooting happened on January 25, 2008.

She testified that on the day of the shooting, she and Christy Dunn, Robert Dunn's estranged wife, were in the backyard of the daycare with their students when they heard a 'pop'.

Weiskopf sent the children inside and went to investigate. What follows is her testimony:

Weiskopf: I saw Christy's car. A man standing up against the car. His right hand bent holding a gun behind his back facing looking at other parents and children getting into their cars...

Prosecutor: And can you describe him?

Weiskopf: Baseball cap, sunglasses, dark hair, blue jeans, white tennis shoes.

Prosecutor: Did you know who he was at the time?

Weiskopf: No m'am.

Prosecutor: Had you ever met Dunn's husband before?

Weiskopf: No m'am.

Prosecutor: How was he acting?

Weiskopf: Stoic. 

According to prosecutors, these events took place just before Christy Dunn was gunned down.

Weiskopf eventually went on to testify that, after seeing Robert Dunn's picture, she recognized him as the man in the parking lot with the gun.

Dunn faces the death penalty if he is convicted of his charges of 1st degree murder, burglary and child abuse.

Based on the opening statements, the defense has indicated it plans to prove Dunn did not plan or intend to kill his estranged wife and was not unlawfully on the daycare property.