No-one has debated the tragedy of the incident guys, just the media focus on and susequent war against the breed not the individual incident.
As for the media hype about this dog allegedly hanging onto this guy's hand for 20 minutes, it's something that's being used to go after other pitbulls and related breeds. This video shows a genuine attack on someone's arm - and the damage that can ensue after just a few seconds let alone 20 minutes.
There is a warning attached to this one though - not for the faint hearted AT ALL:
YouTube - Pitbull Attacks Female Animal Control Officer