Christopher Cantwell 
Regarding the Matter of Oswald’s Body #4 [PDF ebook] 

A shadowy figure awaits the forensic results of Lee Harvey Oswald’s supposed body, while our four-now five-are waylaid in Texas on their way to Louisiana, with the risk of capture adding to their already tense situation. The four are increasingly bothered by their fifth wheel, and contemplate what to do about him, but when one of them answers that question, they’ll all have no choice but to face their fates one way or another.