'American Sniper' Murder Trial Begins

An image of slain Navy SEAL Chris Kyle hiding Easter eggs on Easter day is shown on a monitor in the courtroom during the murder trial of former Marine Cpl. Eddie Ray Routh in Stephenville, Texas, Feb. 11, 2015.

Taya Kyle, wife of slain Navy SEAL Chris Kyle, testifies on the witness stand during the opening day of the capital murder trial of former Marine Eddie Ray Routh at the Erath County Donald R. Jones Justice Center in Stephenville, Texas.

Erath County District Attorney Alan Nash delivers his opening statement during the capital murder trial of former Marine Eddie Ray Routh at the Erath County Donald R. Jones Justice Center in Stephenville, Texas.

Court appointed defense attorney Tim Moore delivers his opening statement during the capital murder trial of former Marine Eddie Ray Routh at the Erath County Donald R. Jones Justice Center in Stephenville, Texas.

Eddie Ray Routh, center, takes his seat for a pretrial motion hearing in Stephenville, Texas, Feb. 10, 2015. The military veteran is accused of the fatal shooting of former Navy SEAL Chris Kyle.