Board Thread:Legitimate Canon Questions/@comment-25333461-20150702155620/@comment-4091815-20150707120727

I don't get how you can be confused. Grandma Martin saw the deaths, created the code and buried all their names in the code in hopes her banshee/genius granddaughter would figure it out and stop the killing.

Meridith took the list, added money as an incentive and turned the list into the dead pool.

It was granny Martin's computer from her time at IBM. Merideth and Brunsky hooked it up to the internet and automated the payments.