research of violent crimes caused by games

Justin Williams killed his neighbour when he’s neighbour came round to his house and told Justin to ‘calm down its just a game’. Justin replied that it his life and he grabbed his neighbour and punched him then stabbed the neighbour in the chest (geek ti.me)

A child killed his 9 month year old sister when hes sister started crying while the child played call of duty. While being distracted by his sisters crying he died on the game so he picked up the sister and shook her until she died. (geek ti.me)

Two brothers admitted in court that they where copying the mini game in GTA where the player has to shoot as many people as possible who are driving on the motorway. However in court the two brothers said that did not mean to hurt anyone. (geek ti.me)

Same week that GTA V was released the was a shooting of several people in America.

Parents should get the blame for the children playing these over aged games because they are the ones who buy them the game and also consistently allow them t play the game even though they know what is in the game.(youtube video)

People claim that the is a thing such as game addiction and the was tests taken at the American psychiatric association to see if can cause a mental illness however they did not have enough sufficient evidence to be able to say that it can cause mental illnesses.  (wikipedia)

some people think that playing games is a good thing and they think that games are good way of releasing stress and anger. however all test which have been over 130,000 participants worldwide completely contradicts this and hows that they increase negative emotions and feeling and thoughts. (http://ithp.org/articles/violentvideogames.html)

people use the excuse that they are not harmful by saying ' i play violent games but i havn't killed anyone'(http://ithp.org/articles/violentvideogames.html)

things cuased by gaming are, carpel tunnel syndrome, migraines, sleep disturbances, eating irregularities and of course poor personal hygiene. (http://www.video-game-addiction.org/physical-consequences.html)

experiments show that violent video games effect a person more then violent tv shows or movies which have been proven to increase violence within someone. (http://www.apa.org/news/press/releases/2000/04/video-games.aspx)

The first study involved 227 college students who completed a measure of trait aggressiveness and reported their actual aggressive behaviors (delinquency) in the recent past. They also reported their video game playing habits. "We found that students who reported playing more violent video games in junior and high school engaged in more aggressive behavior," said lead author Anderson, of Iowa State University. "We also found that amount of time spent playing video games in the past was associated with lower academic grades in college."

the second study , 210 people either played a violent game and a non violent game and within a short time of plying the players who played the violent game punished the player and got angry in some way. however the players on the non violent game took a lot longer to say something aggressive or negative. 
(http://www.apa.org/news/press/releases/2000/04/video-games.aspx)