His son did it!
He murdered his mother because she wouldn't buy him the latest computer console and when Chris turned up at home he tricked his father into playing a game of 'head in a rope'.
The editor of the wiki article turns up on the doorstep to apologise for his "little joke" on the site, when to his horror he realises what has happened and kills the boy in panic.
EDIT: wow...
Chris Benoit mystery editor confesses: Claims & - Wikinews, the free news source