When I learned about your father, I figured you'd come here.

3 seconds sound clip from the Back to the Future Part II movie soundboard.

You can hear this line at 00:51:27.343 in the Blu-ray version of the movie.

Quote context

[...]

- Marty, George, your father is in the same place he's been for the past 12 years: Oak Park Cemetery.

- No. No! This can't be happening!

- March 15, 1973.

- No! Please, God, no! No, please, God. Please, God, no. This can't be happening. This can't be...

- I'm afraid it is happening, Marty. All of it.

- When I learned about your father, I figured you'd come here.

- Then you know what happened to him? Do you know what happened March 15, 1973?

- Yes, Marty. I know.

- I went to the public library to try to make sense out of all the madness.

- The place was boarded up, shut down, so I broke in and borrowed some newspapers.

- I don't get it, Doc. I mean, how can all this be happening? It's like we're in hell or something.

[...]