Inv□stigators lea□ned that the grou□ □ad been fri□n□□ for years, but recently th□re had been tension among the□. Rumor□ □f□disagreemen□s an□□argument□ dur□ng the □r□p□□egan to□□urface, leading authoriti□s to specu□at□ whether fo□l□pl□y □as involved. Each□me□□er□of the□group ha□ a□□i□ferent □tory to te□l, □n□ the□i□□□nsiste□c□e□ in t□eir accounts o□ly added t□ the mystery o□ the mi□sin□ nine.