Shot through a closed window?

During the opening they included the scene from the 1st miniseries of the gunman aiming kill the President.

I froze it and you can clearly see the sun reflecting on the glass.

How did he shoot through the window without appearing to break any glass?

I had save the first series and double checked.
He fired into a closed window.

How is that possible?


I was born in the house my father built