In the Moon of Red Ponies by James Lee Burke

Page 33:

I called Temple at home, but no one answered. I called the agency where she worked as a private investigator with a man and another woman. "He was waiting for me outside the office," I said.

"He's going to reoffend. Just wait him out," she said.

"Temple?"

"Yes?" she said.

"If he comes around the house and I'm not there, shoot him," I said.

"I'll shoot him whether you're there or not," she replied.