Well the whole thing was tragic in so many ways. The guy could have had a great life and contributed to his community and been someone youth could look up to. However he apparently made some bad decisions and if he was knocking doors down he MAY HAVE had some anger issues.
Anger issues isn't a reason for anyone to die but he probably needed some serious help. That is a very unfortunate ending to this person's life. I in no way can blame the person for shooting him. That's why people have weapons in their residence. That person had every right to defend himself in what must have been a very frightening and threatening moment.
I do send out my condolences to the victim's family and friends. A son, brother, cousin, etc, has been lost.
The decisions that people make can have tragic consequences. I hear about it every single night on the news stations down here in Atlanta, Georgia. Maybe thugs is a bit strong of a word but it's a word that is used by people of all races down here. It may have a racist tone to it to some as it generally is referring to people who commit violent crimes and often times it is associated with black criminals committing violent crimes. However, like I said I talk on a regular basis with law abiding black citizens who refer constantly to the criminals as thugs. Doesn't matter what race they are, White criminals, Italian criminals, Hispanic criminals, or black criminals, if they are committing violent crimes they are often refered to as thugs.
Now maybe some of us are jumping to unfair conclusions, but generally a non-violent person isn't going to knock down doors unless their is some kind of emergency going on. For example, in this case lets just for the sake of argument that his girlfriend (past or present) had called him and told him she was going to commit suicide and he was just trying to get in the apartment to save her life. Then this kind of behavior would be understandable.
Of course most rational people would call the police in these type of situations but I am just trying to be fair here and give an example. Do I think this is what happened? No, but maybe we should not always assume the worst in people. A young life has been tragically lost and it is very regrettable regardless of the reason.