Mentally stressed out!

 "You are wrong officer, you are so wrong. My son didn't kill his mother!" Mr. Robinwood tried to talk it off, why was the policeman making it hard for him?

 "Is he not here? We traced his last phone call to this place."

 Mr. Robinwood creased his brows, and wrinkles appeared on his page, "No. He is not here."

"We will head over to his place then," the police officer adjusted his uniform.

 "Good day Mr. Robinwood," he turned on his heels, and headed to the door, his constables behind him.

 Mr. Robinwood knowing how much trouble might cause him if Jimmy was arrested, stopped them, "Wait!"

 He stopped, and looked back at him, "Yes?"

"I want to tell you the truth," he hung his head.

 "And that is?"

 "Yes, you were right. I was the one who killed my wife. I was also there at Jimmy's house," he sounded, "She was being too stubborn, and I just could not take it anymore."