Rampage (2009)

Although Bill Williamson is 20 years old, his life still has no purpose. The only time Bill leaves his parents'; house is to go out with his best friend Evan. But Bill';s parents are tired to nourish their son and begins to put pressure on him to find another place to live. When Bill';s boss refuses a raise for him, he is very dissatisfied. Bill sends a message to society but no one cares what he says. Over time, the innocent will not be safe because Bill has decided to embark on a merciless plan to clean up the world with bullets.