The moment I was out of the tourney as number 3, the remaining players went allin with nothing. What happened?

Starting Hand
Dealing pocket cards: [9d, Td]
laammaa calls
Ray Patterson raises $6,575
king benna! calls
laammaa calls
Dealing flop: [8h, 6c, Jc]
king benna! bets $3,200
laammaa calls
Dealing turn: [Kh]
king benna! checks
laammaa checks
Dealing river: [8s]
king benna! checks
laammaa checks
Ray Patterson shows [9d, Td] for a pair of eights
king benna! shows [6d, 3h] for two pair, eights and sixs
laammaa shows [3d, Qc] for a pair of eights
king benna! wins main pot $24,525
king benna! wins side pot $6,400
Ray Patterson finishes the tournament 3rd and wins $37,450
Ray Patterson stands up
Starting Hand
king benna! raises $70,297
laammaa calls
Dealing flop: [3s, Kd, Kh]
Dealing turn: [2c]
Dealing river: [Ks]
king benna! sits out
king benna! shows [Td, 8c] for three Kings
laammaa shows [6d, 4c] for three Kings
king benna! wins main pot $119,232
king benna! wins side pot $12,281
laammaa finishes the tournament 2nd and wins $52,162
laammaa stands up
king benna! finishes the tournament 1st and wins $85,600
king benna! stands up

Whenever someone allined, they would BOTH call. Usually one would win the hand. Sure seems like they were working together all the way, perhaps even one person with multiple pcs?