Leave it to you to post one specific set of information and then insult people who base their comments on that information.
The article did not say how old the MODO person was. It did not say who started the physical altercation. It did not say anything about that someone "walked across a multi-lane street through traffic, targeted the weakest person in the group, got in his face, dragged him onto the street, then bit his finger off.". All we have is your word for that little detail.
If that were the case, then the MODO guy is a lunatic (probably is anyway). But with the information provided, my original statement stands.