If you kill your own grandfather in the past, he'll never have a son.

You want to know what happens if you do go back and kill your grandfather.

"That those who killed my grandfather will kill me next."

The disease killed his grandfather and three other people on that side of the family.

I'm thinking of the man who goes back in time and kills his own grandfather.

You know the theory about what if a man kills his grandfather in the past.

You build a time machine, go into the past, and kill your grandfather when he's a young boy.

You said it would be all right if the right person had killed your grandfather.

Dunwood was meeting someone on the night he killed his grandfather, and my take is she didn't show.

Like, someone discovered a time machine, went back, and killed their grandfather?