This is a classic example of: "Who is responsible for the death, the gun or the man pulling the trigger?" and from what I have seen, most people want to blame the gun or in this case, FB. If someone is unstable you can't blame FB for that, FB didn't make them unstable.. perhaps their excessive use of FB resulted in social problems that lead to an instability but you can hardly blame FB for that.

I don't know about you guys but I am seriously getting tired of people blaming everything and everyone else but themselves for their problems in life.