The murder suspect at the center of a national immigration debate admits he fired the shot that killed a young San Francisco woman on an evening stroll with her father.
The question remains whether he purposely aimed the gun at Kate Steinle, 32, or accidentally fired the weapon.
The former head of the San Francisco Police Department crime lab testified in court Thursday that the shooting appeared to be accidental. Prosecutors and police contend that Juan Francisco Lopez-Sanchez was aiming to shoot Steinle when he pulled the trigger on July 1.
Investigators and ballistics experts earlier testified that the bullet ricocheted off the concrete pavement of the pier and struck...