□<□□Invest□gators lea□n□d that the gr□up□had been□□riend□ for years, □ut rece□tl□ th□re had been tension among th□m. Rumors of d□sagr□ements a□d□arg□ments durin□ th□ trip b□g□n to surface, leading authoritie□ to sp□culate whe□her foul play □as involved. Each□me□ber o□ the group h□□ a different□□□□ry to tell, and t□□ in□onsistenci□s□in□their accounts only added □o the□mystery of □he □is□□ng nine□<□p>