Creative Writing: Mary Maloney's Murder

As the days go by Mary Maloney is waiting to get the call that the detectives had found her husband’s killer. Although, Mary knew they never would find the killer, because well quite frankly she would never turn herself in.
The next day Mary got a call from the detectives.
“Hello is this Mrs. Maloney?” said detective Jack Noonan.
“Why yes, it is Mr. Noonan, have you found out anything else about the case?”
“Yes, about that Mrs. Maloney, we have found your husband`s killer.” Mary was in shock, “What am I supposed to do...” she thought to herself as the detective was still on the other line, “I cannot let some poor innocent man go to jail for my mistake.” Eventually she snapped back to reality in time to hear Mr. Noonan talking about going down to the station.
“Would you like to
Noonan,” Mary said with an emotionless face, “I have something to tell you, this is not the guy you need to take to prison today. The person you should be taking is me.”
“I am confused Mary.” Noonan said, “What are you talking about?”
“I am the one who killed Patrick; remember that lamb leg I made you and your partner for dinner dear?” Mrs. Maloney said to Jack whose face looked disorderly and perplexed.
“Why yes of course I remember Mary, that was delicious, but what does that have to do with anything?”
“I hit Patrick in the head with that, and I fed it to us so nobody would find the weapon.” Mary said looking down. “I wasn’t going to tell anyone and let you send that poor man to prison so I wouldn’t have to go.”
“Mary, you know you can trust me, I wouldn’t let anything happen to you because I know that’s not what Patrick would have wanted.” Jack said to Mary who was crying with her head still faced down towards the floor. “Why did you kill him anyways?”
“I really, really did not mean to, I thought it would just knock him out for a while so he would forget what he had said to me.” Mary explained.
“Well Mary what had he said to you, was it anything vulgar that could get him in