“That was my partner at the casino,” he told Gunn. “He confirmed she won sixty-four hundred dollars last night. He’ll check the cameras to see if she was followed when she left.”

Gunn nodded.

“Let’s go take a look at the victim,” Bosch said.

Bosch silently studied the murder scene for several minutes, trying to take in the nuances of motivation. Tracey Blitzstein had a contact wound on the left side of her head just above the ear. There was an explosive exit wound encompassing much of her upper right cheek. Her body sat behind the steering wheel of the Mustang, held in place by the seat belt and shoulder strap. She was killed before she had made a move to get out of the car.

Her small clutch purse was lying unzipped on her lap. Her head was turned slightly to the right and down, her chin on her chest. There were blood spatters and brain material on the dashboard, steering wheel and passenger seat and door. But little blood had dripped from the wounds down onto her clothes or purse. Death had come instantly, the heart getting no chance to pump blood from the wounds.

Bosch noted that the Mustang’s windows were all intact. He believed that this meant that the fatal shot had been fired through the driver’s open door. Bosch drove a Mustang himself. He knew that when the car’s transmission was placed in drive, the doors automatically locked. This meant that the shooter didn’t open the door. The victim did. She had likely stopped the car, killed the engine and then opened the door to get out before taking off the seat belt. It was when she opened the door that the killer approached, most likely from behind the car, and fired the fatal shot into her brain from a position slightly behind her. She probably never saw her killer or knew what was coming.

Bosch noticed a yellow evidence marker on the passenger-side door. There was a padded armrest with a hole in it. The yellow tags were used to mark locations of ballistic evidence. He knew that the slug that had killed Tracey Blitzstein had been stopped by the car door.