6 never did trust 7.

Sure, they worked closely together, but 7 always seemed at odds with him.
6 always preferred the company of 4, a perfect 10 of a duo, even though 2 kept them apart.

But when it came to 7? 6 always summed it up to bad luck.
Then, 6 found the truth.
6 respected 9, even though lewd jokes always seemed to be made about the two.
6 found that 3 and himself could come together and be seen as equal to 9.
When 9 was removed, 6 had a very negative feeling.
Some were considered prime suspects in 9’s death.
2, 3, 5, and 7.
6 knew it had to be 7.
His involvement with 9 added up two well.
6 snuck into 7’s house.
He looked up from the floorboards, and found himself under 7.
An admittedly improper position for him, but 6 saw the proof he wanted: 9’s body, half devoured.
7 was a cannibal…
7 8 9.
6 has spent the remainder of his days terrified of 7, worried that someday 7 will learn what 6 knows…
And promptly solve his problem.