Published: Nov 15, 2012 9:30 PM EST

FORT MYERS, Fla.- First responders recalled the moments they discovered a teacher had been fatally shot in front of her young students during the capital murder trial of Robert Dunn Thursday.

Dunn is accused of gunning down his estranged wife Christine Lozier-Dunn at the Bobbie Noonan's Child Care in Cape Coral on January 25, 2008.

In the second day of testimony, jurors heard from a medical examiner who conducted the autopsy, a foresnics technitian with the Cape Coral Police Department, and a senior firearms expert with the FLorida Department of Law Enforcement.

The most compelling testimony, however, came from two Cape Police officers who arrived on see seconds before the fatal shots were fired.

An employee of the child care center called 911 after hearing a gunshot on the playground.  That's when a group of 2 and 3 year old's and teacher Christine Lozier-Dunn huddled into a bathroom.

"This hysterical white female comes running out the door and she yells it's not real. 'I said what in God's name is going on here,'" Officer Gerald Moll said.

He described discovering the victim's body and toddlers splattered with her blood.

Moll attempted CPR, but it was too late.

"They were bloody, crying, scared. And uh, i saw a female lying a pool of blood," Moll said

According to testimony, a parent disarmed Dunn who was arrested without incident.

Another major development Thursday came when officer Curt Suskevich testified Dunn asked officers to kill him while he surrendered.

Testimony will enter a third day on Friday at 9:00 AM.