Anyone have info on the contents of Cheri’s Diary? Or the names of patrons who were at the RCC Library that Sunday night?

In the newspaper article after Cheri’s murder they interviewed a Walter Seibert who was in the RCC library the evening of the murder.

the article stated that Walter knew Cheri, and there is a Walter Seibert in the Ramona High class of 1965 year book.

There is currently a listing for a Walter E Seibert in Riverside CA, probably the same guy.