□nvesti□a□ors□learn□d that □he group □ad b□en □riends for years, but rece□tly□t□ere had been□te□sio□ am□ng them. □um□rs o□ disagreements□an□ argu□e□□s during the t□i□□began□to □urf□ce□ le□ding aut□or□t□es to specu□ate w□ether□foul play□was involve□.□Each me□b□r □f the gro□p ha□ a di□fe□ent□story to tell□ and t□e in□onsisten□□e□ □n the□r accounts o□ly ad□ed to the □ystery of the missing□n□n□□