JACKSONVILLE, Fla. -- The jury in the Leslie Demeniuk murder trial heard more about the grim crime scene evidence on Tuesday.

One of the witnesses called by prosecutors was lead detective Sgt. Jay Lawing, who one of the first investigators called after victims James and John Demeniuk were shot to death inside their grandfather's Ponte Vedra Beach home.

The victims' mother, Leslie Demeniuk, has admitted to killing the boys, but claims she was insane at the time of the of the March 2001 incident.

As Lawing described the clothing the boys were wearing, Leslie Demeniuk cried, as did the boys' father Tommy Demeniuk, who testified earlier in the week about the last time he saw his sons alive.

Lawing also read a statement signed by Leslie Demeniuk that read: "When I got back in the room, I shot both boys in the head. I think I shot Jamie first. I think I shot one of them twice. I don't know what was going through my head. I heard one of the boys still breathing."

Earlier in the day, some of the first people to come in contact with Leslie Demeniuk the day of the shooting testified, including a deputy with the St. Johns County Sheriff's Department and a paramedic.

The deputy testified that Leslie Demeniuk was coherent, as did one of the emergency workers at the crime scene.

"The police officer asked if she knew why she was there, and she stated that she shot her baby. She told police that the gun was in the house, that it was her father's gun, she got it out of the closet and then shot her children," said Emergency Room Physician Dr. Karen Flek.

The prosecution is expected to rest by Wednesday afternoon.