I didn't know that.
I heard the official line that it was a piece of glass that hit him.
I think it’s in this interview.
https://www.youtube.com/watch?v=L3CDcCMLg0I&list=PLYTtL1FB2XCooAYmmy31Wlo6SM4_sWqKS&index=7
I remembered hearing that he was hit by a body when it happened, didn’t remember that it was a woman, but then the story changed and I never heard it again. I was lucky enough to have recorded a version before it was sanitized. I sat in front of the TV for days, but my memory is slipping so I like to go back to original source.