Jake Randolph in "The Littlest Client" Pt. 132

"The only way to end this is to kill Gallagher," Dolan said and Nelson nodded.

"If we could get some dirt on him they could put him away," I said.

Dolan shook his head, "He'd just be pulling the strings from inside the joint. He has to die."

"I can't let you walk up and kill Gallagher in cold blood, Dolan. You'd be no better than he is."

"At least I'd be with Katie."

"No you wouldn't, Dolan. The L.A.P.D. takes a dim view of murder, even murdering someone like Duncan Gallagher. And you'd go down for life this time."