[Iscool]

Wolter explained Olof’s children went to school in District 63, which started Sept. 5. One of Olof’s sons Willie said the rock was found one day after school, making it found in September.

This guy is way off...It was found in June...Everybody knows school kids get out in June...Or maybe it was the spring break...That'd be March, or April, wouldn't it???

[Bear_Slayer]

the rock was found one day after school

This sentence could be read in many ways:

One day after [the] school [year started]

One day after [the] school [year ended.]

One day after school [let out in the afternoon]