After encountering some difficulty when trying to contact Donald Freed, author of ‘Killing time – The First Full Investigation into the Unsolved Murders of Nicole Brown Simpson and Ronald Goldman’ (his website was easy enough to find, but the strange looking contact e-mail address has bounced), I tried to contact the author of ‘Hawk 4 – Killing time’, William S Brady, according to the Wikipedia entry for Angus Wells a pen name for either for Wells (who died in 2008), or for John Harvey (who is alive and kicking – his latest crime novel is called Good bait). I found John Harvey”s personal web site and now his blog, mellotone70up, which is quite a good read. And I sent my ‘request for permission’ mail.
Having failed to contact Donald Freed, I have used the contact page of the University of Southern California where he has taught. Not a likely avenue, but it is worth a try.