All other witnesses near the scene are recorded on the report but since they were not the witness to a crime, there words are not part of the narrative. RC's could have been but he didn't want to talk at the time.
Anyway, all others observed are put down on that form. If you look at the list you will see the people listed who were there and approached LE or LE approached them.
You will recall that there was a spot blacked out which may have belonged to Jr. (can't recall if it gave a date of birth or not)..if date was left open to read then we know it was him. If not, we can only assume. I am going by memory here.
If we assume that they observed JR there, then we must conclude they saw Crystal there since she is also listed.
BUT if LE was simply taking down personal info from other people and reporting it on the paper (for information to be used or known later) than, one can also say JR may not have been there at the time. Because this is how they explained away Crystal's not really being there.