Hello everyone

Can anyone help me find out what movie/tv show this was?

What is remember is a very small clip where a lady was sat watching the news or something with a cup of tea and she had a knock at the door. When she answered the door she realised who it was and went running. She went to her bedroom closet to get a gun but it must of been too late and she turned around and the guy shot her.

I remember that when she turned around the scene froze to emphasise the terrified expression on her face.

Does this ring a bell you anyone?