GRAND JUNCTION, Colo. KKCO 11 News cameras were rolling as the first of many witnesses were called.
Jurors were brought back to November 27th 2012 as part of the 911 tape was played in the courtroom.
Logan Martin was the dispatcher who got the call from Jensen. She was frantic and panicking on the phone after realizing her youngest son William wasn't breathing.
Martin talked her through CPR until help arrived.
During the recording Jensen was crying pleading with William to wake up. She told him she would already lost their dad and couldn't lose her son too.
There were five other witnesses who went through the events of that night as well.
Lead Detective Mike Piechato was the first to take the stand. He did the interviews and collected evidence including the clothes William and Tyler were wearing when they were found in the car.
A woman who was headed home and stopped at the scene also testified. She said Jensen told her she left her kids in the car for a short time to smoke.
We also learned the name of the man Jensen was with today, which Colten Childers.
The doctor who examined Tyler Jensen when he arrived at the hospital also testified saying the boy was critically ill.
The last witness today was a firefighter who called for careflight to respond to the scene.
The trial continues on Friday morning.