Hawaii Five-0, Season 5

[Grover is incensed that a close friend of his in the force may have killed his own wife and tries to insist on why would he do that]

Lou Grover:
Oldest reason in the world, brother. Oldest motive. Love. [shows a pic on Clay's cellphone] LeAnn Stockwell. One of your trainers at the gym. One you've been having an affair with for over a year. Aw, those photos? Yeah, these photos. The photos you took on your phone and deleted them. I got teenagers, man, and you know what my teenagers taught me about technology? Nothing gets deleted. Nothing ever goes away. I talked to LeAnn, Clay. She told me you wanted to leave your wife and be with her.

Clay Fields:
So, what, what? I'm-I'm a killer because I lied to some piece I had on the side? Is that's what you think?

Lou:
I think you wanted to start all over with some fine young thing that just adored Clay. Then you did the math. And you sure as hell didn't want to live your retirement out on half your pension in a small rented apartment on the South Side of Chicago. You know, I really don't even think it was the money. I know how much you love people thinking you're such a good guy. "Aw, that Clay-- he's a great guy! Stand-up guy!" You just didn't want anybody to know that you're the kind of guy who'd step out on his wife after 20 good years. I'm done with you.

Clay:
You know, that's a great story, Lou. The thing is you can't prove it.

Lou:
Not yet, but you're gonna spend the night in a cell. And I'm gonna spend the night on a plane back to Chicago, and I'm gonna talk to LeAnn in person. And then I'm gonna search your house. And I'm gonna search your car. And I'm gonna search your locker. And I'm gonna talk to your friends. I'm gonna talk to your neighbors. I'm gonna talk to your pastor. I'm gonna talk to everybody you know down to the guy who shines your shoes! And anything you think I can do to help you, Clay-- [gets closer to him] any favor I could call in, any length that I could go to, any power or influence I might have-- I'm gonna use all of that to lock your ass up! Smoke on that.