In□estiga□ors □e□rned□that□the grou□ had□been□fr□ends f□r years, b□t recently there ha□ been□tension among them□ Rumor□ of□disagre□ments and a□guments during t□e tr□p□began to surf□ce, lea□□□g autho□ities □o □pec□la□e whet□er f□□□ pl□y wa□ involved. Each □□mber of the g□□up had a different□□t□r□ t□ t□ll, and the incon□istencies i□ □heir a□c□unts□□nly a□ded to□the □ys□ery□□f the m□ssin□ nine.