"Bioshock Infinite is a very big game, and we're doing things no-one has ever done in a first-person shooter, " said game designer Ken Levine in a message posted to the game's website.

BBC: Bioshock Infinite delayed until 2013 by Irrational Games

We have demonstrated, as no other economy has, that life need not be a zero-sum game, that one person's gain is not necessarily another person's loss.

FORBES: THE EVIL THAT STRUCK US

The shooting was the worst at a U.S. high school since one person was killed and five wounded at a high-school football game in Houston 11 months ago, according to the Brady Center to Prevent Gun Violence, which promotes tougher controls on firearms.

WSJ: Teenager Arrested in Fatal School Shooting in Ohio

In one of her previous studies she found people playing a two-person monetary investment game over the internet while viewing a picture of the "second player" were more likely to trust this player if the picture was digitally morphed to resemble them.

BBC: NEWS | Health | Familiar faces seem more friendly