Much of the testimony from day two in the capital murder trial of Eddie Routh consisted of technical aspects of the case including weapons used in the slayings and evidence from the crime scene.
Routh is accused of killing Chris Kyle and Chad Littlefield at a shooting range at Rough Creek Lodge on Feb. 2, 2013.
Texas Ranger Michael Adcock , a crime scene expert, was the state's first witness Thursday.
He testified that when emergency responders began CPR on Kyle, the defibrillator read a pulse.
He said when the bodies were found, both victims had loaded pistols in their holsters that were in locked position with the safety on.
Lancaster police officer Flavio Salazar gave testimony about the night Routh was taken into custody. Salazar was one of the officers who responded to Routh's home after his sister called 9-1-1.
"We (knew) we had a person in a truck who had killed somebody," Salazar said, referring to Routh who had fled the scene of the crime in Kyle's truck. "Myself and Detective Howard got stop sticks (a type of spike) and put them behind the truck."
After Thursday's lunch break, Salazar resumed testimony.
Jurors are expected to watch dash cam video of Routh leading police on a high-speed chase and his arrest this afternoon.
Staff Writer Autumn Owens is inside the media room giving updates on testimony throughout the day. Follow her on Twitter @aowensETnews.